hi i ride a onza t pro with echo lite forks and ecvho team stem. however im planning on gett a new frame. ive heard good thuings about the gu short and i am wondering if it is really that short compared with my t pro but has got a 60bb height. or whether i should get the zoo python short, or i have even been told that the zhi zm1 are good bikes they are 1015mm wheelbase and also got a 60mm bb rise which is gud. ive heard alot about the back of the frame flexing is this bad. or will it be ok if i use a brake booster. thanks alot guys matt