...or have up close/personal experience with someone who's done so. It would also seem as tho' the walk-thru feature of these more modern transoms would need to be encumbered by a mount to which the vane would be attached. For those of you who are knowledgeable about the 34/36 owner sites, tech articles etc. that must be out there, I'd welcome a referral if someone has tackled this. And many thanks! Jack jack_patricia@yahoo.com