prop question

[trapperjack1]

can you tweek a 15-20 prop down to a 15-19?
and can you tweek a 15-19 up to a 15-20?
in other words can you over lap the to?

 

[KK40384]

That should be do able. You just can't expect to tweak a 14/17 into a 15/20 or the other way around.