RE: ILLUSION and Webra Speed .61...
jquid - I'll be watching your build thread and referring to it, but I promise I'll post some pics of mine as it progresses.
I think I'll tune the pipe for 11 - 7.5 props and let 'er spin up. Prop tip speed noise is not a problem and not worried about unlimited vertical or constant speed in the up lines...just want to hear it scream...(wink)