I've recently had a couple of people asking about a longer socket handle to be able to get a two-handed grip on it. Not trying to dissuade anyone from a longer grip, but I just wanted to demonstrate that by making use of the generous choil I like to put on 'em, one can get a pretty solid hand-and-a-half grip on all of the bush swords I've made recently. Even with gorilla paws like mine.
From the shortest...
...to the longest.
These are intended for one-handed wielding, but they are capable of two-handed chopping if need be. I wouldn't use this kind of a grip to stab, though. :(