My reduction was at 50g resin to 22g acetone - since the resin is way heavier than the acetone - it's even more than a 50% reduction by volume.

You do get a lot of evaporation, I was thinking about that, and that is why I started brushing it on from the fin to the nose as Mike observed. sometime there is a method to my madness - one of the things I thought about at 4 am one morning in bed.....