My experience with Saito 82 on a profile hasn't been very positive. While it's a great engine, it does have a lot a vibration. As for the profile, a vibrant nose result in a very dynamic fuel tank. I can see the fuel getting twirl around like juice in a blender. It will cause much leaner mixture as fuel is getting consumed, so I end up starting the flight w/ very rich idle setting.

I don't have this problem on a fatty. Profile just seems to have this problem with Saito 82.

Hey, look out for the new Webra 55, due out in US mid May. 13x4W @ over 12k rpm, baby!