Doing some research for plans on a winter project. I have an 08 KX250F that needs a little TLC and while I'm in there I want to do it up right. This bike will be mostly trail ridden with an occasion trip to a MX here and there. Which would be the best in trail/woods riding. A high compression piston or a big bore? I've noticed the big bores all seem to have lower compression than stock. I know compression can help with bottom end, but so does CCs. I'm not concerned about the need for to run race gas if that's what it will take to achieve what I want. Looking for some more bottom end and lugging ability, but still be able to let it loose in the straights. Technical advice and first hand experience appreciated.