It all depends on what you want to do with the bike. I don't see 20mm more travel putting hardly any more stress on the headtube! I do see it affecting the angle of the head tube....it'll slackin it up a bit...some people like that others hate it. It's all up to you. If you're from a bmx background and are gonna be hitting dirtjumps and doing some drops...i say go with the Marz Dirt Jumper. OR stick with the judy and that bike till you figure out where your style is going. Then just use the cash you were gonna spend on a fork and put it towards a bike/frame and fork combo that will suite your riding style a bit better.
