Wanting max performance from my current setup,Sunsation32MCOB,496Mags with CMI tubes. considering lab finishing the stock 28 Bravos. opinions? suggestions?

Lot of money for a couple mph. They thin the blades so depending on where you boat you can damage them easily.

Labbed Bravos will pick you up a couple MPH. As stated, the trade off is thinner blades that are more prone to damage and breaking off. Not worth it IMO unless all you do is Poker Run the boat.

What year boat and what rpms are you currently turning?