I have an pair of hiking boots that must be over 20 years old. (Danner Mt. Lite) I had them resolded once and now they need resolded again. (I use them for "light duty" jobs such as around the house etc.) They are too heavy to use on the trail anymore. Can a heavy weight boot be resoled more than one time? The leather is still in good shape and I would hate to part with these old friends. In their day, those boots saw a lot of the trail and then some!