Demold time for Performance 80D

I bought some Performance 80D the other week, and have been excited to try it out. Recently, I have been getting a lot of problems with bubbles/foamy top on my casts, so I have since then moved into the other part of my garage, and started storing my resin in a cabinet with a dehumidifier in it. This morning I got myself a pressure pot for the resin, and gave it a test cast, with very pleasing results. Though, when I demolded my piece, it was still soft, but almost no bubbles. Im using 1/4oz of each part of resin, for a total of 1/2 oz, when both parts are mixed. The weight of the amount of resin is about 5 grams. What Im wondering is, I left that test piece in the pressure pot for about an hour, and it was still soft around the edges. The temp is about 65*. I know the demold time is 30-60 minutes, with 100g at 75*. Since my part is so light, should I just let it cure longer? Is there anything I can do to speed up the cure time, while under pressure?

Thanks guys!

Jeff