Although I don't know about the M-17, I was without a centerboard on my M-15 for a while and, although it didn't really feel any different, there was a big difference in the amount of leeway when beating.
 
Giles Morris
 
-----Original Message-----
From: Honshells [mailto:chonshell@ia4u.net]
Sent: Tuesday, October 07, 2003 8:35 PM
To: For and about MontgomerySailboats
Subject: M_Boats: monty 17

 
My guess is that the weight of the board wouldn't make a difference, it would be the leeway allowed by lack of lateral resistance on every point of sail except a run:  Someone please correct me if I'm wrong.  I'm just guessing.