you could lab the 25 and add addtional cup to account for the rpm which will result in addtional lift and a little more speed,as far as the 4 bld it will plane out quicker and probably run a few mph slower but with greater overall " charistics "? such as mid range speeds, and handling at high and lower speeds .

How much to lab the 25 and add the additional cup? I may try this...I would be happy to gain a couple mph:)

BAJA BAILEY ,175.00 plus 15.00 for shipping back to you ,if we have to make any adjustments later in the summer they will be done at no charge to you other than shipping back.Thank's Darin

I would lab a 27 mirage plus. It'll be faster than a bravo 1. When I tried a bravo 1 on my 25 o/l it porpoised pretty bad at higher trim angles which I needed to get any speed and rpms. I would expect the same from your h2x but it sure wouldn't hurt to try your luck. Good luck..

Thanks Darin, I may just have you to lab my current prop. I'll let you know...

Thanks for the info. I have no porpoise at all now and I sure dont want any..

I had a 23p rev 4 on my H2X it really din't work to well. I had bad cavitation problems it would blow out just about every time just before planning out.I would stick with the 3 blade.

Thanks for the info. I knew some of you guys on here had to have already tried this... I figured I would be able to get enough feedback from you guys on here to decide wheather to even fool with trying a 4 blade..

That is VERY strange. Never heard of anyone having that experience before.

It did seem kind of strange it wouldn't do it all the time but there was times i had to try to take off like 10 times before i could get it up on plain .Switched back over to the mirage 23p 3 blade had no problems i am going to try a 25p mirage next.