I have removed HS recoil pads to install other pads. it is a fairly easy process requiring very little labor. This is the method I use and it works very well for me.
First make sure there are no screws in the recoil pad as I believe HS has both screwed and glued them on. If there are screws, remove them. Next put the stock in the freezer for 3 hours. After 3hr. period remove stock from freezer carefully place in a 6" vise with the stock protruding upward, vertically. Make sure the vise is only contacting the recoil pad as you do not want to mar or scuff the stock. Pull sideways on the stock until the stock separates from the recoil pad. A slight tap with the palm of the hand may help.
Hope this helps.
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