If you can get the Czech made Bambula - do it -
We have been runing all sizes for the last months and found that they simply do NOT make a ripping sound -they get loud but no rip.
Performance is equal to any combos tried on various models.
We have tried 20x10--22x8 (ZDZ40)
23x10-24x10 (ZDZ60)
26x10 (ZDZ80/DA100)and 30x12 (DA150).
In every case - the least noisy prop and performance as good as any other setup on that model.
Note that rpm on the ground will be lower than MenzS and much lower than APC.
APC was run only on ZDZ40 -example 7300 on non piped engine -then switching to Bambula - rpm dropped to mid 6000 .
performance about the same - less noise.