I have the .58 and it runs great. Only problem is it drains a 6 oz. tank a bit faster than a .46 and it won't shut down when the carb is closed. Other than that it has run perfectly. It pulls my TT profile Extra verticle like a rocket at 5.5# with a 12/5 zinger.

Even though I do enjoy the .58 very much, I bough it because of the size, which is nearly the same a .46 but more power. But with a .36 available compared to the .38 I would suggest the Thunder Tiger.