Just a quick follow up. Picked up the Crossbow 13-10-7 quiver a couple of weeks ago.
The Crossbows take a little getting used to after the Switchblades. The turning is more centre spin than a carve around the tips. Once I adpated to that all is fine. The 13 does feel a bit like a Kenworth but it works really well. The 10 is nice and sporty and the 7 is just a 7m kite. Small and fast.
The overall impression for all the kites is smoooooth.
Physically handling the higher aspect kites is also different. Just turning the kite over on the beach takes a little more effort than the SB. Launchers have commented on how big the 13 feels. On the other hand, it's much easier to pump the kite without unfolding. My old SBs used to twist along the LE where the XB neatly unwraps itself.
In the air the 13 is like a hang glider. Amazing lift, glide and float. It's so easy to fly through the air then throw in a loop transition for the hell of it.
The top end of all the kites is excellent. We've had the 13s out in over 25 knots and not had to pull in the trimmer. The 10 is very comfortable in 30 knots and the 7 comfey well over 35 knots.
The different turning made the bottom end feel a little odd. The kites prefer to be flown in curving arcs rather than diving hard down and up strokes. Once I mastered the technique it was all good. According to the local weather station we are riding comfortably in 10-14 knots which as 3-4 knots lower than before. On several occasions I have been the only kiter out (but that was often the case with the SB12). It feels like I have more bottom end (and huge endless top end!!!!)

Launching is typical Cabrinha, although the higher aspect causes the tip to get stuck a little during light wind launching. Walking further upwind helps and reverse launches are very clean and neat. Powered launches are easy. Relaunch has been easy but I've only plonked the kites onto the water a couple of times. No fully fledged crashes or inversions yet.
Landing with IDS is so fantastically simple and safe and easy. Far easier than all the other kites I have used (and I've used a lot).
The bar is great and it's lovely to ride with just a single smooth plastic tube going through the bar. After these I would not consider other kites with 2-3 bare ropes passing through the bar.
The swivel on the IDS doesn't seem to do much so I have chosen to be more concientious in doing reverse spins and loops from time to time to keep it looking neat. I don't think a few twists are a problem and I have not thrown a kite onto the safety system in years. It's still nice to have the IDS permanently engaged rather than having to choose to go for Oh ****! loops.
The bags are nice and neat and they're fine for an obsessive like me who likes to neatly pack the kite into the bag each time. The bag for the 13 is a bit of a tight squeeze. There's no extention for leaving struts packed. The bars fit into the bag although it takes a little bit of jiggling to get them in there.
I once packed the wet kite into the bag and it was easy to get the kite out at home and hang it to dry so once you adapt it's probably easier to just pack the kite away wet and sandy and deal with it at home. It might be a good idea to take a big plastic bag or tub for kiting at beaches with no packup area.