I have large hands and I don't have any problem using the TL175 leads. They are long enough to feel good in my hand and I like the built-in option to have a sleeve over the tip for using in tight spaces. The safety collar to keep your fingers from sliding down is a smaller diameter than some of the other probes I have but this also helps to get the probe into tight spaces.
My only complaint is that the probe tips are not needle sharp but I use a set of Pomonas to pierce insulation or get in really tight places when I have to.