Update: ended up going with a Sig Kilo 2200MR and was doing some informal testing of it at the beach this weekend. So far, I'm a little skeptical about how it is going to perform on deer in the 700-800yd range.
I was ranging mainly things like houses, water towers, water, grass hold, bushes, i.e, things that I would have thought would have given much better returns than furry animals the size of a deer.
I was able to get returns inconsistently out to maybe 1500yds on water towers and sometimes out to 900 on houses. Lighting conditions for this were in the mid to late afternoon.
One caveat is that it was super duper humid. I don't know if this adversely affects LRFs, nor if that was the issue with this one having such inconsistent performance, but that was always part of the environment I was ranging in. It was always right at 90-97% humidity, but never rained.
Allot of the readings from the sides and roofs of shingles houses simply read "----".