Thanks for the advice once again Bob, sounds like a reasonable plan. But what Wayne might do though is try the same basic process, but starting with the new black Evo props since I can get them readily at the LHS. Maybe like a 10x6 or 7. Another thing is that I've only got room for a 10" prop, maybe 10.5" at the absolute max. I'm really curious about the Evo props because I had great improvement with them right at the end of last season but I ran out of weather. Right away though I got a feeling they might be a great prop for a lot of applications, I'm also anxious to try them on some .35-.40 single engine stuff too. They also ran real smooth and quiet. Anyway, I'm just hoping that in the end one of the three bladers will work out for the PBY, we'll see.
BTW Bob, I think you mentioned it before, but where is the best place to get the TT props from. I'd never even heard of them until you mentioned them.