Hey Bill-
Just a tad over $100 for 5 gallon pail of isopolyester. Vinylester is $120-$130 if I remember right. Getting it from Composites One. The fein can take some abuse that's for sure. Mine would not take a charge the other day. I have the cordless one. One of the little metal things that is in the battery that makes contact with the charger was stuck/pressed in. I pried it up a little and bingo it was fixed. The patent has run out and now there are several other places that make them for cheap.
Yes things are popping out of molds without any problem. One thing I like about using more pva is that it's easier to peel off the part when it's thick.
I wish they made a vacuum attachment for a disk/flapper grinder
strick