It is not hard to do well, 99% of the cutting is hidden.
In a long ago posting a member told me to get out the Dremel Tool put the old grip in front of me and start whittling away on the inside of the new one trying it as I went. He estimated 15 minutes; I would say he was right on, not including the time it took me to find the bits I wanted to use. My tool area is suffering from an excess of tools and a paucity of organization.

As a side now I have Hogues on all of my third generation S&Ws and my M3913.

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Ipsis Rebus Dictantitbus