IMO You should modify you tools to suit yourself. If you want a big fat wooden grip either end, go for it. I didn't have my own tools there so I was using a good variety, Cody had a funny metal handle on his, it was a bit undersized but obviously worked for him, many had no handle at all and I would n't want to use 'em all day long.
I have a handle on one end of my rasps and files.
My rasp isn't as big as a farriers rasp (I tend to use a spokeshave more than you guys) and I use the palm/heel of my hand on the far end.
I can see that a tape or leather wrap on there would help if you are using it on that nasty hard yeller stuff you get over there
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Do your own thing, tools are personal...
Del