This is my observation and experience, too. One club member, who had a greasehole in his stock, got so disgusted with it, that he had a patch box put over the hole, and cut out the stock under the lid of the PB, to hold--- PATCHES!
His comment to the rest of us( I was new to the club, and didn't even own a ML rifle) was that he had to first use a patch to wipe off the surface grit, lint, and whatever flew by and stuck to the grease, OFF, throw that patch away, and then use a new patch to actually get some lube on it to use with his ball to reload his rifle. He also complained of getting grease on his clothing, and in the summer months, having his grease melt in the sun and stream down his stock.
He Convinced the rest of us to avoid grease holes in stocks. Having observed that, I still occasionally see shooters with grease holes in their stocks, and they seem fine with it. TO EACH HIS OWN! :thumbsup: :surrender: :hmm: