Hi all.  Just bought an almost new 2015 Evo 300.  On my previous bikes (Scorpa and GG) I raised the forks in the clamps to enhance steering as they had lots of fork rake.  I was told by another 300 owner that Betas have the steepest fork rakes of most bikes and that I should lower the forks in the clamps as much as possible which will enhance stability.  What do you Evo owners recommend?

Ride it and figure out what works for you. Bar position and suspension setup all work together so you are going to have to ride, tweak, ride, tweak to get it where it feels right to you. There is no standard recipe, especially with a trials bike.