Rob - what size are those doors ? My eyesight isn't good enough to read the tape measure. And what kind of glass did you use - single-strength (3/32") ?
My gut instinct looking at those doors is that they are about the size of kitchen cabinet doors (?) and probably *lighter* than traditional solid wood doors. For which traditional cope-and-stick cutters work fine. What made you think you needed reinforcement ?
On the issue of "no comparison" - have you been experiencing failures with biscuits ?
I keep asking that question because how much strength is enough ? I guess if we all had Dominos, it would be a non-issue and we could stop using pocket screws, dowels, biscuits, etc - and all those other things that have traditionally worked pretty well in the right application(s).
Can you loan me $1K ? :gar-Bi
-Mark