I have been noticing a lot of guys are trying to sell their RFS MXC tank. It seems only a few months ago that everyone wanted to buy one. Did you guys just not like it or what? I think the IMS tank for the RFS is the way to go. I thought I needed a bigger tank but I am finding that after I burn a full tank on my EXC on tight single track, I have just about had enough biking for one day.