Chisel handles and ergonomics
Derek Cohen (in Perth, Australia)
Carpel tunnel?
I agree, William.
I love the look of the Marples Boxwood chisel. Aesthetically, they have a balance. They are even nice to hold in the hand. However, the shape that I prefer, that suits me, is the Veritas, which has a position to push with a thumb and palm.
I am not keen on fancy turnings on chisel handles. Even the much-loved London Pattern style I avoid (except as handles for screwdrivers).

It is similar to some handles for dovetail saws. There seems to have been a fashion - taken to an extreme at times - for placing a "bump" that is intended to mould into the palm ...

... but all it does is dig into the soft part of the palm. So I rasp it smaller ..

What I like about the Veritas handle is that it has a soft flow (like the Marples), but has sufficient thickness to grasp without exerting too much force (unlike the Marples, which is slim and demands being held more tightly = fatigue). And there is a position for the thumb to rest.

One cannot fail to mention Blue Spruce chisels. They may be criticised for the use of A2 steel (this has not bothered me), however the blades are slim (creating a lightness and agility), and their handles look sublime. Using them alongside the Veritas shows (again for me) my preference for the Veritas in that the BS are a touch shorter.

A comparison with the Stanley/LN is interesting ...

The Stanley is too short for my liking (may suit another) ..

I had a set of #750 Stanleys, and replaced the handles with something similar to the Veritas (before Veritas made theirs - which says why I like them) ...

If I owned LN, I would want to use them differently from the Veritas. Probably more like a Japanese chisel ...

Japanese oire nomi are designed to be used with a gennou. The tap .. tap creates much control of downforce. These handles are not designed to be pushed, as one might a Western bench chisel (a better all rounder).
Oire Nomi (I made these handles, partly to get a bunch of individuals to match as a set, but also because I wanted them a little thicker than standard) ...

Instead, one would use a long-handled slick for paring ...

Here, the grip is from the end of the handle.
Regards from Perth
Derek