I was wondering if anyone has used the Tower 2-stroke .61 for light pattern planes. Such as Dirty Birdy, Kaos, etc. It seems hard to ignore the price of this engine. The OS engines are literally twice the price for what is advertised as the same power output with a great warranty. I have had a 40 size Tower engine years ago but don't remember the ease of starting, idling or overall reliability. This is not to trash OS because I have always liked these engines and own quite a few. I would like some feedback from this group. thanks