And yes, I too am a little wary of Clavil's concern. Where they are a believer of screws/bolts get loose over time, hence made in their V3 visible for easy/practical periodic tightening, here are something new (Q series) with hundreds of threaded innards which seems to be quite a feat (even if possible) for self maintenance. Well, unless they have figured out ways and are soldered in some ways for perpetual perfect retention.