Having run 3W props - I recall that they rev more easily then the Menz S--in same sizes - typical result.
The 27x10 MenzS props -on my 80's (ZDZ) run in the low 6000 range - ( 6200/6300)- but again we are up at 4500 ft .
The Bambula 26x10 loads more-than the 27x10 MenzS
We tried em - passed em around on a couple of DA100's -just to see and it was the same thing -
We see a fair amount of ZDZ and DA engines here - so we get a chance to see what props and relative engine setups really do.
The nice part of it is that when an "incredible " performance figure is mentioned - it is quite easy to sort and file it --