s2c, I've tried the Burgess BV125 and the Siebert BN22. The Burgess was by far a better unit. I don't have a BV atm. The Siebert was supposed to be the upgrade.
worth checking out Edz' recent posts on CN about different binoviewers - see
this thread. Quite surprised to read that the Denk standards suffer from prism light cutoff. It dampened my enthusiasm for that unit, which was the one I was going to try next. I might just go back to a basic unit like the WO or perhaps the beefed up version of the budget Chinese binos from Baader. I won't be able to afford anything better for a long time.