This is just my findings with the kite, I am gybing on the foil and rarely drop a kite, but in sub 10kts i always struggled with relaunch of my Solo 12m.
So i have had 3 sessions on the Peak4 8m now. I bought it to use for snowkiting and hoped that it would work well to replace my LiquidForce Solo V1 12m. I am very happy with the kite, it is a joy to just lay it out on the beach, roll out lines, step back and its away. Its straight forward to land as well, using a single front flag out, parking it on a wingtip, pulling a front line and walking towards it seems to have it down without too much tangle. It definitely stays in the air when other single strut kites are falling, and this has allowed me to body drag ashore when the wind drops. It will get me up in 9kts, so about the same as my 12m Solo, but has no tendency to drop from the sky as i enter the water. It has been very confidence inspiring.
But it does sit along way back in the wind window, my upwind angles are a good 10 degrees less than with a foil kite, i suspect similar to the angles i could achieve powered up with a surfboard. I tried foiling 360's but just get pulled off backwards, you have to keep some line tension to keep the kite turning and this tension doesn't help...Downwind is a hoot! double what i can do with the Solo, the kite just drifts incredibly.
This is with an Onda wing and me at 90kg. My Solo was always a compromise, so is the Peak4 8m, but i prefer it for now, and it seems to give similar grunt to the 12mSolo.
I have not tried the relaunch, you would have to steer it towards the water to get it wet!
For use on snow, i think it will be great, especially as i weighs next to nothing so the hike to the site will be far less painful!