Thanks. Reason i asked is because the
manual for the s600's have a diagram that shows the mounting depth as 2.3" not 2 1/8" as the website says. So i just wanted to make sure.
Ah well. I ordered the thicks yesterday 'cause i got impatient. If they are too thick i can just plane down the backside.
There's a better pic somewhere, but i can't find it at the moment. But
this thread has a few shots.