Have to agree i feel more comfortable flying my 7.8 to my 4. The upwind performance of the 4 sucks pretty hard in my opinion or perhaps thats my lack of skill, Has anyone else found this?. Either way bigger is better and as long as you are careful and dont make any stupid moves you will get the most out of your session with Bigger Badder Blades. Just make sure you have a good set of kk's so you can let it go when the going gets tough! I set my 7.8 in big winds the other day and was over powered but i took my time and got BIG stinking floaty airs so go BIG or go home!