I sure dont think the BC covers are as strong as they once were. I have used them for years but recently have broken several on the NF scope, particuarly the objective at the pivot point. They just seem cheap now ?? But there is not anything better yet
With each step in the bush, you are a step closer.
I don't like the butler creeks on the Nightforce NXS, since the entire ocular turns when moving the magnification (unlike the Leupolds). I use Butler creek flip ups on my Leupolds, but they are walk around rifles, not sit and wait/LR rifles.
If I have time to change the power setting, I have time to pull the cover completely off which is most of the time.
Len Backus, John Barsness, and Charles Speck here on Long Range Hunting all are familiar with the ScopeShield(tm) scope covers. Unlike the ScopeCoat, which is excellent for the rack, the ScopeShield is specifically designed for use in the field as well.