Thanks for the info. I have been looking around for some quality information about the Thunder Tiger Engines. I have not been able to find anything bad about them. Everything I hear, is really good other than the occasional jibe about consistency. Actually, I SEE inconsistency everyday at the field in the way people handle and treat their engines.

I have seen so many Heli/Engine combos that use the Raptor and OS engine. Why? Because of recognition? Well, I am putting my money on the "Largest 2-stroke engine manufacturer in the world" and that is Thunder Tiger. They are awesome engines and you can't beat the value.