My boat has the same setup except for the Maxprop.  

A few facts about the TDM22 is that it is rated for much higher rpm than Amel chose to use.  On my previous boat, I always got 4200+ at full power with the comparable prop.  AMEL just chose to operate the engine at a lower rpm.  This was an easy choice as our engine has a good torque curve and lower rpm results in longer life and less noise/fuel.  So we have 70+ hp instead of 82 in my previous boat.  

Not much impact in my opinion.

Enjoy your boats.

Cheers,

Jean-Pierre Germain, 

SY Eleuthera, SM007

Opua, NZ