The cuts were done very slowly and very carefully. No problem with the 45 degree angle, but the 45 degree 'surface' is a little wavy. Put another way, the 45 degree cut was very close to, but not quite s-t-r-a-i-g-h-t.
If I'm ever going to use this approach again, I gotta figure what went wrong. Obvious candidates for culprit are:
1.) My hands, i.e. if I let the piece float up above the TS surface. 2.) The table saw. 3.) The blade.
I very carefully 'greased' each piece with wax-paper and held them as steady as possible when cutting, so I sorta doubt that 1.) was the problem.
The old 10" Freud (maybe 60-t) blade wobbles a tad, but it generally looks pretty solid. If it flexed a little while under load, that would explain it.
How to test? Other possibilities??