if you cant afford a os get a gms .47
the thing hauls compared to the .46 la and is about the same as a .46 fx but only $70
mine purrs, love the engine, its a set and forget engine (if i didnt break so props.....but i finallly got smart and got 6 of the same prop, 10x7 MAS)
btw i run 5% on it and it runs fine.