Get the TT Pro .46 and never look back. The LA engines are some of the most under powered engines I have ever seen. They also sound like they are going to come apart at idle they make so much noise. I go rid of mine as fast as possible. You will be amazed at the difference in power and smooth handling of the TT pro. You should check out National Hobby Supply for the TT Pro. I got mine there for 69.00. I do not know if the price is still the same but would be worth the look.