I'm feeling the size problem of my 18.5 NRS and am looking to get a larger frame that can handle my fat-arse!(200lbs) I saw a good deal on a Jamis XC Expert and noticed it only comes in 18,19,21. Where's the 20"? Do you think the 21" is the way to go or is that going to be too large. I'm ~6'2' with a 34" inseam. What do you think? Also, do you think a VT1 would be a better decision (frame only). I ride mostly aggresive XC..some brutal stuff...but I do ride long distances to get to the trail (usually around 20 miles of bike path). Any suggestiosn would be great!