[Leica] M6 TTL / SCA Confusions

[craig at craigschroeder.com (Craig Schroeder)]

I've got an M6 TTL headed my way in the next week and I was checking out 
my strobe combos that I currently have and to sort out compatibility 
issues.  The M6 manual lists the SCA 3501 as the correct module.  I have 
a number of SCA 300 flash units and am accustomed to swapping modules 
for different systems.  The 3501 module looks smaller in photos and 
seemingly doesn't stretch across the entire SCA 300 piece but looks to 
have the same shaped slot, etc.  I live in a rural area, far from 
metro/store resources and need to lean on the net and user groups for 
guidance.  Can anyone steer me correct a bit on this?

I wasn't originally focused on the M6 but it came along with a lens deal 
that I made and made sense as a package so I'm on a quick M6 study 
course....
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