Cummn thru, what sort of revs do you get with a 15x6? Prop is balanced and I don't actually seem to have much vibration now that I've leaned the bottom end in, thats taken the lumps out of the 100 and it now appears fairly smooth for a large single. the control surfaces aren't vibrating much, sounds to me like it's the big bang of a 4c echoing in the wing, I hope the foam tape will help, I've got a speedy bee with OS15la that was real noisy in the wing till I added foam tape, forgot about that and didn't fit it to the ucd until after it failed the test!
Will the 100 spool up quick enough for hovering with the 15x6? I just don't want to go out and buy another £12-£15 prop that'll bog the engine down if the money would be better spent on a soft mount.
cheers