Just swapped necks on a Strat and I've noticed the neck screws seem to keep loosening. Not super loose, but I wouldn't call them fully tight. I can turn them with a bit of pressure, and have done this like 3 times over 4 days. This neck had the old holes plugged and new holes drilled with the existing screws used for sizing. I'm concerned I might be twisting the screws and I'm about to break them. So, new screws? Anyone encounter this?