Can labbed props be tweaked anymore after the fact?

Were they labbed for your boat and you want them tweaked? (then yes)

If they were originally intended for someone elses boat but now you want them labbed for your boat. Probably not unless it was a similar boat and the "lab" was for that type hull. You might hit the lottery if somebody like BBlades did it and has their ID number on it, they can tell you if its "close" to what you need.

Third option, roll the dice and try them... maybe you can re-sell them if they dont work well. ...maybe - LOL

First answer................Yes.

And then Keith's answer is correct.

You see, people have over and under estimated what the term Lab Finished means in the last number of years. I have to bite my tongue often.
Lab Finishing was created by Merc Racing and involved a specific 1 off design design. Since then BBLADES has taken the process to a new level which involves geometry adjustments made for the boat specific.
Now, prop shops across the country claim to do the same.

flat rate,
your propeller was Labbed. What exactly does that mean? If it was 2001 and I was sitting in my office in Fond du Lac WI at Mercury Racing, I'd know. But today, that means nothing.
Truth be told.

Call any time and we will answer any questions you have for the same free of charge rate that we charge daily.

Awesome question flat rate. Seriously.

Brett