Angrybear, perhaps you did not read my post in depth; yes whilst I agree that pellet skirts might be made somewhat more "round" by pushing a pointed object into the skirt, have you taken the time and effort to measure any changes in MV, shot to shot, accuracy and as I mentioned skirt sizing my take you over the 12 fpe limit. I do not have to worry about this limit only finding that MV usually increases as well as uniformity and accuracy improvement.
The method I have described makes EVERY pellet uniform and not a somewhat hit and miss method of pellet recovery.
Cheers