I have the ne xr bravo 3 props, they have had some work, but not sure if labbed. For my heavy ass under powered boat they are awesome. I have 24' and will be going a little bigger soon.
There has been some testing with off setting pitches with Bravo 3 props and have found some great advantages in doing so. need a little more info on what you have to maybe find you some improvments. Have labbed a few with little if no improvments at all but those were very high pitch props 30P and taller.