I sailed for a few years without the amas and never as fast as I do now. The problem was the wind gusts, I was constantly dumping the sail to stay upright. And it's a lot more fun hitting waves knowing I have the stability of the amas. I do agree, as some have mentioned, that the amas slow you down when they get buried, I'm going to try the middle or upper position. I will also try to rig the furler again with the pedals set at five. That looks like it will clear the drum and line though I'm not sure how it will work with long legs!
Here is a similar clip of some sailing I did in Bodega Bay last week with a little less wind. I remembered to mount the gps this time, my top speed was 4.5 knots:
https://www.youtube.com/watch?v=oqd7P9NAdu8