I have a nice old Collins I bought for 3$ that needed a new handle. It's probably 2.5-3 pounds. I picked up an antique handle the other night. It is a little thinner than the ones you find in the stores today. When I got home, I noticed that the handle doesn't really have a shoulder for the head to sit down onto. It's a perfect fit for the axe head but I'm not sure if I should bother using it now that I noticed this problem< (I was in a hury when I bought it.) Are these kind of handles for a certain type of axe head? Would the head end up coming loose and sliding down the handle with use? Any feedback wouldbe appreciated.