I had it plugged because most of the balls I use have an extra hole, and this was an experiment. This particular ball doesn't get used that much, and I wanted to see what the reaction change would be by plugging the hole. It actually seems to roll better now (Storm Sync with the hole on the VAL 2 1/2 below ML). Based on some of the later comments, maybe the $20 wasn't so bad after all, considering the hole was 3/4" x 3" deep, and if he had to pour the filler 2x or more. All the PSO did then was cut it down and maybe hit only the plug area with a pad. The ball had the same surface lines on it from when I surfaced it on my spinner. Overall, since it rolled good, I'm happy with it and understand a little better about the costs. Thanks all.