I've used an Aftershock Bolo for my primary chopper for a while, like 5 years, it's my favorite. I really like the ergo handles.
I have a BWM, CG not LE, I haven't chopped with it, played with it a lot. For me the swell in the middle of the handle isn't comfortable, I feel that way about the TACs too.
When the FBM's ( I know this is a BWM discussion) first came out, I used one exclusively for the summer, it's a beast. I was rearranging things one day and picked up the now neglected AB, it felt so good in my hand, I put the FBM away and put the AB back on. It was like shaking hands with an old friend.
I wear a medium glove, my hands are on the small side, with the Ergo handle I can always get a comfortable secure grip. On the BWM I struggle to find a good grip and it feels like there will be a hot spot on my palm between the second and third finger at the swell around the center fastener. I can really only find one grip position that feels comfortable and secure. Not sure how that would play out for me on an afternoon of chopping. I've never gotten a blister from the AB.
The BWM gets great reviews, so it may just be more a function of hand size and technique than design. I thought about modifying the BWM handle, for about 2 seconds, I already have something that works for me.
Find out what works for you.
My $0.02
Nice knives, you wouldn't be under knifed with either choice. Satin/Black paper is one of my favorite combos.
AB LE #87 :thumbup:

I've got #86 & a CG

The CG is my user.