Both. The 73gr ELD-M is good. Wide wound channels with sufficient penetration for deer/lopes. The 75gr HPBT is a penetrator. Kills well while going through bone. I prefer results when impact velocity is above 2,200fps with the HPBT.
What performance did you see within different velocity windows with the ELD? similar to your posts on the TMK?
My experience is limited to Berger 6.5 140 Elite Hunters, .308 168 ELDs, and 6.5 143 ELD-Xs.