Hi

I have several OS and several super tigre engines, i think in general the os seem to be more reliable and easier to set up. although i have super tigre engines that have been very reliable.

A slight prob with the super tiger is how easily the manifold breaks in a crash.

You havn't really got a comparable super tiger to the fp or la range of os engines but if you want similar power to the ball raced os's for a much lower cost the super tigers are good value.

Simon