[Rhodes22-list] New Owner - OBM question

[The Rhodes 22 Email List]

Hi all - John here, a soon-to-be first time R22 owner, as soon as Stan finishes with the final touches on a recycled '99.
 
A quick first question to the assembled wisdom here:
 
OBM - how critical is the "high thrust, low RPM" type of OBM that is recommended? I can only find that advertised for Yamaha 9.9s and above; no other brands mention the 'high thrust' versions; the R22 forum comments don't seem to mention it (as they do shaft length and general size/hp).  
 
I will be a lower Chesapeake sailor, so the OBM use will be primarily in/out of the marina.
 
Thanks all!!
 
John