I have two complete glider assemblies in my van:
-W1000/647/400
-W940/700HS/370
-well actually I have a 3rd Slingshot Phantasm PTM 926/710/400 but doesn't compare with the other two.
For flat water speed and glide I take the W1000.
For staying in the pocket on slower windswell I take the W940.
The W940 glider also has an easier pump but is less pitch stable. I was practicing heelside tacks in flat water the last two days and the W1000 just has more glide. I also find the carvy turn of the W1000 at higher speeds more fun on the W1000 in flat water. For flicky turns and pumping through turns on swell I prefer the W940 although both can do this. The biggest difference is that the W940 is at equilibrium at slower speeds like when riding slower swell. The W1000 prefers to be traveling at a higher speed and below a certain threshold it starts to slow down, whereas the W940 will be happy to just keep chugging at the lower speed.
There is a lot of overlap on these two gliders, so much so that I can ride either and be happy 99% of the time, but there are also noticeable differences... so much so that I value having both... and this is coming from someone who likes to ride the same thing every time, so this is a little bit new to me.
I rode some groundswell on a pretty good sized swell a couple weeks ago, and the control, stability, and speed of the W1000 was very appreciated. I would like the try the W940 in similar conditions.
For those of you who want more glide out of your W1100, I would consider the S470 stabilizer. The S483/S450 are pretty chunky. Also, the stock angle on the new 700HS fuselages is about .8 degrees less than with the 710 Surf Fuse... less angle will get you less drag. You can try a .5 or 1 degree shim put in backward to lessen the stab angle and see if that has any benefit.
www.sunsetsailboards.com/products/sab-foil-moses-s470-rear-wing-stabilizerworking on those pesky heelsides on the W940
www.instagram.com/p/CUdrjLgPIKa