A few days ago i bought a few Cold Steel Bowie Machetes from a Dutch forum member, and today i changed the plastic grip of one of them a bit more to my liking with the use of a coarse wood rasp.
The contouring makes for a much more comfortable grip when compared to the original handle shape, and snap cuts can now be done much easier and without handle shift.
The rough surface structure left by the wood rasp also offers a much more secure grip, but only prolonged use will show if it needs more smoothing.
The factory edges on these South African made versions had some burring left, but that was an easy fix on the Tormek leather wheel.
The edges are slightly convex, and each apex currently fits in the 45 degrees inclusive slot of my Tormek WM200 AngleMaster.
A bit overkill i think, so some thinning will probably follow later.