Hey thanks for all comments,
I'll most likely go for the OS 61FX and just over power it. It sounds like from what most people have said that with a 40-50 size engine it will still be tail heavy so might as well over power it. I already use a 61fx for my 40 sized Extra300L and I like how the engine runs so I think I'll get another. Hopefully it will work out well.

What has everyone's final flying weight been with this plane?
How well does the twist do with tight loops and outside loops?

Thanks

By the way I live in Alaksa.