How even I am depends on the hold I use.
On the lattice rung, I take off 5kg on my left hand but 9.5kg on my right.
On the Beastmaker middle slot, it is 4.25kg on my left and 4.75kg on my right.
I'm not sure if the difference is due to the lattice rung being more open handed and the beastmaker being more positive or whether maybe the difference is down to my shoulders.
The two lattice rungs I have used have a central pulley quite far back from the rung,making the hang a bit side on and bringing in a slight element of compression. The 3 beastmakers I have access to all have pulleys close to the board approximately in line with the outside slots, this puts you in a more front on position as you hang.