Lots of videos on ELDm at high speed, they never pencil, they mushroom violently with lots of frag. on long shot mushroom into beautiful wide ball. I think the plastic tip driving into the lead prevents penciling.Looks like I'll be that guy. ELD's (not amax) have been unpredictable inside 200y for me. They pencil and I've seen it more than once with more than one caliber.
Over 200y they have been very predictable and devastating. When I asked some guides that see several hundred deer, auodad, axis, fallow and occasional elk die each year, they agreed and had seen the same with their customers.
I've decided, there are better bullets out there and I'm done with them.
Good luck.