When I started out RC 20 years ago I would not have bothered to look at a TT engine. Enya's were unreliable then. OS set the standards and OPS were great engines. Now I still believe in OS engines but do not own one anymore. I have found out that the so called 'cheapo' engines are actually good stuff, very "value for money". I mean I was shocked by the SC/ASP engines. For me I just wanna try them out and see if they work. I am lucky that they superceeded the expectations. Next on the menu are the MVVS!