I figure I will write my thoughts down here while it's still fresh on my mind.
I'm somewhere in the intermediate range of windsurfer. I restarted last June/July after having taught myself a few years back. I've progressed a LOT since I restarted, and am probably 10x better than I ever was before I took a several year break. That said, I have still not completed a fully planing jibe (but I have entered planing and exited sub-planing to then get back planing on both 145L and 115L boards), nor a foiling jibe. But, I feel it's very close now, at least a foiling jibe. Part of this is local conditions, which was a lot of the reasoning in putting the money down for the full IQFoil kit. Summers here in FL aren't that windy except when storms roll through, but evening seabreezes that are pumpable for a big sail on a foil are very, very frequent.
I weigh about 85kg now (185ish lbs depending on the day), in pretty good shape, and didn't have much of a problem with the kit other than uphauling the sail with a luff sleeve full of water. I'll probably start just waterstarting the big 9.0 4 cam sail soon just to save some energy. It really, really sucks to uphaul that sail. I've waterstarted the slingshot kit when it was high enough wind, but I haven't bothered yet with the 9.0 just due to the size and complication of getting all that water in the luff sleeve. But, I hate pulling that sail up, honestly, and I think waterstarting it if the wind is there will be a better move.
The board is fairly durable. Within the first week I had cracked the nose a couple times in some gnarly catapults, which were my fault for beam reaching in gusty conditions somewhere in the 15-20kt range. But, those didn't soften up the nose and appear to be watertight, so I'm not too worried. My crashes have (mostly) been more benign since then, except for losing control downwind in a 26kt or so gust that sent my hip straight into the mast, which I am still sore from and which is why I didn't go out today, just to give myself some time to heal up a little more.
I've put a LOT of sessions on this thing in the month I've had it. It's hard to resist because I don't need multiple sails, I don't really need to think too much about the conditions, I just load one board one foil one mast one sail and GO. I've ridden in everything from ~8kts or so to over 26kt wind in that time, at least a dozen sessions. Top speed so far has been about 25mph.
This whole kit exaggerates my windsurfing weaknesses and forces me to find a solution. I cannot blame a mismatched kit or suboptimal board like I could with my freeride (slingshot) foil and hybrid board (Blast 145). It's all on me, because these kits have enormous capability.
Here's what I've learned so far, in a month:
*I was mainly mowing the lawn when windsurfing, except when catching waves on the dyno. I was blowing up on the IQ by trying to beam reach in 20kt gusts, going as far to go to the -1deg shim with a very forward mast foot. This was wrong and me being dumb
*I have since learned to go deep upwind or deep downwind with a 0deg shim and central mast foot, in up to the above mentioned 26kt or so gusts. I still have some stability issues going downwind but my fear of turning that way is much less than it was
*I have learned to zig zag up and downwind in order to reach a set bearing without getting too much lift
*I have gotten a lot better at riding the harness, but I think I still need some tweaks to keep my heart rate from going almost to 200bpm while screaming around
*I have gotten much better at rigging a 4cam sail by adjusting downhaul for getting the cams on there easily without wasting too much time
*I'm trying to get better at adjusting outhaul, and someone told me that it's pretty much necessary for this kit and I understand why now
*I've learned to pump to foil in about 8kts wind, maybe a bit more, and found it extremely rewarding. It's much easier to pump than the slingshot/blast combo due to the width and volume distribution of the board
*I started with all 6 straps (adding the 2 extra downwind/chick straps), but have since moved to only 4 straps by removing the chicken straps. I did like the feeling of chicken straps when going downwind, but also like the freedom of moving my feet when downwind. I'm not sure on this. I hear lots of people don't bother with the chicken straps at all. It would be interesting to know what others think here.
*Almost all of my setup now is mast foot in the center and 0deg shim. I may start using -0.5deg in 15kt or so wind, or -1deg when it's really howling, just to get some more speed and see what it can do. I just handle gusts by looking ahead and adjusting my angle to the wind. It's easy to go too far upwind and slap around not fully foiling, then bear off to get back flying and angling the board more. Downwind is more touchy, but I think I'll eventually get it.
This whole kit is actually fairly easy to ride. Due to the sail stability, that hasn't been a large of a factor compared to my freeride sails. No twitchiness. It's all been in riding the foil. I don't think that this kit feels very difficult to jibe on the foil, either, I just have to overcome my fear. It's intimidating being up there 2-3ft above the water and just committing to the turn. I feel like I'm right there, I just need to dedicate a session to it.
Also, I want to note that the shape of this board makes it VERY forgiving to overfoils. I've ridden out some crazy out of control situations when the foil gets aerated or even jumps out of the water, and somehow come crashing down without catapulting, many times. I still do get into irrecoverable situations, but I'm amazed at how well it recovers. It takes a lot of the fear of overfoils out of the situation. If it's not too gnarly, I'm going to have the whole thing back in shape fairly quickly.
All in all, I've put some serious time and miles on this since I picked it up a month ago. I really like having a dedicated race foil and board, with matching sail, to eliminate everything from the equation other than my ability to rig/trim and my own skills and tactics. Hopefully I'll be landing some foiling jibes soon, meaning that I'll actually be able to attend a local race at some point and then keep pushing harder.
Some videos I took recently to give you an idea (or maybe some chuckles or comments?)...
Here's me chasing down a regatta just recently:
Here's a jibe attempt where I did a few things wrong: