Admittedly I have struggled to have a consistent setup. I think it has finally sunk in after having a poor outing on the Red River. I'm now logging my setup info in a spread sheet after every trip that I make speed runs on. The last few outings have went really well after I started doing that. My boat needs bow weight to run at speeds over 91-92. I don't think it needs the 50 extra pounds up front it is carrying right now. My next outing I'm going out with my 30 bravo again. I'm going to make one run with all the gear up front to establish a base line. Then pull out the none fishing essential stuff (50lbs consisting of the 25lb shot bag, spare prop, and anchor) and move it to the back and see how the boat handles. If all is good that is where it will stay. I ran the 30 Promax and the 30 Bravo after the P4 with no water in the live well, so I have that issue fixed. That dropped 110lbs out of the boat.
I very much liked the Promax after the hole shot. I think I would switch away from the Bravo's to the Promax if I could get the promax to come out of the hole with 1.62's. I had Jay drive next to me a month or two ago and we ran my 27 worked Bravo against his 30 promax. I have 1.62's and 50 extra horse power and he came out just a touch slower than me. My Bravo is worked for hole shot so it dies on top end and he could run me down as it's not much of 90mph prop. The same 30 promax on my boat is a dog. It has a solid 3 Mississippi count before it catches and starts the slow process of coming out of the hole. That is on a cold day with water in the 60's (ideal holeshot conditions).
Do any of your Promax props have 8 holes? I'm interested if that makes a difference. As I said above, my 25 promax with 4 holes didn't pop out much better than the 30 promax. Both had 4 holes. Funny enough, is Jay runs his 30 Promax with all the holes plugged. What a difference the exhausting and gear ration make.