Hi Walt,
Many years ago I was given an old pool table, had a great flat granite surface. Used it as a pool table for a while then some kids tore up the felt. About that time ,y oldest son get real interested in flying stunt! So, a 3/8th inch piece of glass was bought for a song because it was mis-cut, and now I have a granite top (flat) with a piece of 3/8ths glass on top of it which works absolutely fantastic!
Pins are no problem to use at all Howard as long as they are made out of thin CA!
BIG Bear
RNMM/AMM