FWIW, most of the gunstocks I have bent in the past 15 years stay put. However, some wood can be stubborn. Lately I bend about four to five gunstocks a month. It pays to be patient. The bending is accomplished and then left to rest for seven days to make sure there will be no movement from stress. If it moves...I go through the bending process again until it stays put. Nothing worse than an unhappy customer. To date I have had to re-do my own work four times in 15 years... one learns from disappointments. Yep, they may be bent......carefully.