I'm glad Dereelight is leaving the tailstanding as standard. Though all my DBS tailcaps are tactical! It's just my Javelin and C2H that tailstand all that well . . . I guess the DBS would be a little top-heavy for it, though. Heck, if my DEFT tailstands, I think my DBS should too! :laughing::crackup::poke::grin2:
On a serious note, one of my DBSs also has a slightly "off" switch. It behaves in an opposite manner than the OP's, though. It doesn't switch on unless I loosen the retaining ring ever so slightly. It doesn't make the switch any looser feeling or affect water tightness (there's that inner retaining ring for that) so no harm or foul.