Ok, so here is what we found pout this weekend.
Ranging stuff from the parking lot, both run neck and neck to 1250 yards on trees with the sun at our backs.
Shooting at 800 or so. The Sig is faster to get ranges than the Bushy. Both had trouble ranging targets in the sunlit snow.
Overall, after playing with both rangefinders all weekend, it comes down to basically cost. They both will do the same thing, and they will both have trouble with the same stuff. Basically, if the target is small, you need to bracket the target. We had a Cold Bore shot at 750 yards, but neither could pick up the target (it was under 2MOA). Bracketing that particular target gave ranges from 700 to 1200, the real issue her was the lay of the land as the target was on the horizon. The furthest range we used them at was 1060, and both picked it up and gave accurate info for both me and my buddy to make first round hits.