I appreciate the suggestions. It appears that there is some latitude on accepable choice, based upon what one is expecting from this model. As for loading it up for high performance, well, there are far better choices of aircraft out there for that. From your kind responses, I am going with a Magnum .91FS that I just happen to have NIB anyway. I have several of these engines in various .60 size models, and I have been very impressed with them over the past several years. Again... thanks for the responses!!.....Rich