GoTo surfing vs True Surfing

Here are so quiet on wiki todays, so i will try to troll a little:) Now i just in one step to change my movement mechanics to True Surfing, but i think, that gap between Diamond and DrussGT may be reasoned by movement's mechanics difference. Yours opinions?

P.S. I still here and developing Tomcat every day, but do not do releases every day, just because i notice, that with fair CPU-constant, Tomcat skip several hundreds turns per battle and can not find way to optimise him without performance loses.