I have a pair of Tourmaster Venture Air pants. Really like the versatility they provide with the rain liner and cold weather liner. However, I've lost about 35pounds and they are too big. Mine are XXL 38-40 and I'd be interested in trading for a pair of 34-36.
I recently purchased a Gen I FZ1 and test rode an FZ6 when looking. The ergos are very similar with perhaps a little more room on the FZ1. As far as power, there is no comparison. The FZ1 might not have the screaming top end of the R1, but it is plenty for me.