: More details, I am using MAS low viscosity resin and a slow hardener from MAS
: and the wood had a coat of resin prior to the glass, that coat was allowed
: to soak into the wood for about 90 minutes.

I don't use MAS but with West's epoxy the only real way to screw up is to not have equal number of pumps with each pump. The mix ratio has to be correct.

Mixing, I just mix till I'm sure it's mixed enough, then mix for maybe 30 seconds more

Once the epoxy has hardened you can tell if you got air under the cloth as the white spots will obviously have air under them. If not, the color isn't a big deal, you can add more resin if you want them to go away. If you have air under the glass, the only real solution is to heat it up and pull the glass off and try again. The previous thread you asked about this Charlie answered and it's good advice

Bill H.