I'm still hoping to get the chance to compare the new ETR, pre-BTR & BTR Cronus, and one of my Gen III Kahles 624i scopes - preferably late on an overcast day, as opposed to a bright & hot day with tons of mirage. Those were the conditions a week ago when I compared a new Ares ETR to the oldest pre-BTR Cronus I have - I'd had to hurry to get just those two rifles, ammo, etc loaded in the truck to get down to my range before I ran out of time, or perhaps I'd have thought about taking along the other scopes mentioned.