I've had the Sentinel for a few weeks now. I've been using it nightly so after putting some time on it I thought I'd put this video together for anybody looking at this goggle. I've been wanting to run a Sentinel with ball detent for a while and planned to do so from the very beginning. I unloaded my NVD-BNVD-SG to make this happen. I do miss the articulating BNVDs but each goggle has it's pluses and minuses and I've come to really like this goggle a lot. I like it enough to off-set not having the articulating feature of the BNVD.
After using it, I'm a HUGE fan of Sentinel with the ball detent mounting system. Watch the video to see why!