Rampy,
On the t-moulding site, all of the sample images measure out the width of the cut to 3/32nds. I could have ordered On-Line....but I had the time today to kill on the MAME project and I simply couldn't wait!
I also learned a valuable lesson about contact cement.
I wanted to finish my control panel today. I had the artwork printed and used 3 mil laminate on the bottom with "Floor Guard" laminate on the top (gives it that textured Video Game feel

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As for the contact cement, don't wait too long to apply the pieces together!!! ARGH!!! I had to laboriously peel off the dried contact cement and re-apply to the art and plywood.
All in all, the control panel turned out pretty well! There is a small vertical bubble where I didn't get all of the dried contact cement off the wood. Hardly noticeable though. Just waiting for the t-moulding and I am basically done.**
** I am in the process of converting a trashed Data East Jamma cabinet to a MAME cabinet.
-Tom