depending on your x-dimension and slip i would say yes. after back to back to back to,,,,,etc,,, testing they seem to be the prop of choice. at least for me.
we have an 07 38 lightning with 525's and bravo's ( which by the way is available for a great price, having a dealer blow out) that runs 96 and change on the limiter full of fuel and 3 people.

it has herrings.

I have the 29 5 Blade Herring's and they are awesome. Mid Range is amazing, nobody so far can touch my boat from mid range to WOT (on my lake). I turn them 5600 RPM, limiters are 5800. Speed is around 85 to 87. Would only recommend for a lake prop though.

With the slip numbers my boat is seeing, should I start off with 1/2" spacers or jump right in with 1"?

I am awaiting my 30P labbed Bravo and IMCO Extreme prop shaft to get boat back on the water and take real world, GPS, back to back data to post for everyone's use...

razor1115

I run a 27p 5 Blade Hering on my 29 with 575sci and agree, mid range is great, top end is better and prop slip is under 10. Much better then my labbed 30 bravo.
Rick

i would test first with your set up as it is.
imediately test with one inch spacers next.( i say imediately, this way wind, current, air temp, and all possible parameters are taken into consideration to get as accurate of an assesment possible with the different set ups.)
then with the standard length.
also try the different props you may have with each drive height.
if you have access to the i/2 inch, and the patience, then by all means try em. nothing will yield best results as tried effort.
we have gone thru the trouble of making 1/4 and even 1/8 spacers to get optimal results. using this bad boy

Those of you that have Herrings. Did you get the right prop the first time, or did Herring work with you until you were satisfied. I am a little worried about dropping that kind of cash, then not getting them to turn the rpm that I want.

When I talked with Herring, they said it would take 3 weeks to build a set.

So, I have researched quite a bit and found several sources that claim a 30P Bravo I prop is more like a 28P, maybe 29P on a good day. That would seem to be supported by those boats that drop 2 pitch sizes when going from a Bravo I prop to a Hydromotive.

I initially thought the pitch change was due to prop design. Is it true Bravos are not the pitch stamped onto them?

If so, my slip numbers will drastically change for the better. That said, I must be making 550-560 hp at the prop. I was did not own boat when engines were dyno'd, therefore I cannot say what accessories and headers were on the rig when tested. That would support my performance numbers I have seen...

razor1115

Zack, i would stick with labbed bravo 30P & call it good. I did quite a bit of testing with that boat & thats what worked best. lowering the X will reduce slip #'s slightly but also lowers the top speed bottom line. In stock form a '99 35 w/HP's ran 76-77 this was confirmed as my neighbor has the same boat (same year, power ect) His boat had less hours - when we ran them in stock form (the day I got the boat) we would stare at each other for miles. After freshening the motors, I could pull away easily 81-82, than added the -2 lowers & voila 84-85

Thanks for the advice, Randy. I might explore different props but leave the X-dim alone. Summer heat and humidity here drops engine RPMs to 5-5100. Fall and spring, the boat still turns 5400.

Thanks aain for a great ride... have done some minor updates, but overall, still the same!

Zack

Ran Dom

Just curious, did you try any 5 blades in comparison to the Bravo I. I am still trying to find a prop that might outperform the P5X that I currently have. It would certainly to a lot cheaper to have a Bravo I labbed than to go with Herrings.