I rode a 2011 Rumblefish II at a Trek Demo Day this year. Amazing! Fast, stable, handled like it was on rails. I’m a big guy (6’3" and 235lbs) and I love to break things on my bikes. The demo guy basically said the Fish was made specifically for guys like me. I ran it for 7 miles and loved every second of it. I’m in the same boat as you. My plan is to buy the Rumblefish Pro at the end of this season. One ride and I was sold! My only complaint is that the top of the line Fish went from $3849 to $4519! They added 10mm of travel to the back and the DRCV Fox fork.