If I can turn a stock Bravo 1 @ 5100, what do you all think a labbed 30 would do?

That depends. If its a standard merc lab job, then probably 4900-5000. If its a custom lab job, then its a guess unless you know exactly what was done to the prop.

I have a pair of Bravo 1 30's labbed by BBlades for Baja and turned down to 29's. Like new $1000 OBO

They even ship in a BBlades box!

i have a set of micro b1 labbed 30s that you would get 5100 out of ,,they are worked tricked out props, problem is one of them hit something and needs repaired by b blades ,,not that bad probably 300.00 to get like new and match the other one will sell cheap as im building more power and need bigger props, sell both for 500.00 shiped.

Thanks all, for the deal offers. I don't need props for twins. I picked up a Powerquest 280 with a Procharger. It came without a prop. I have a 26 Bravo 1, but hear that it's gonna need a 28. The reason I ask is I found a couple 30's cheap. One's a new Merc labbed B1/30 and the other is a Hydromotive quad 4/30