@gbmcleod my LRS+ have about 250 hours on them.
Regarding the treble high level, in my experience, like I have mentioned in the previous post, that kind of thing is more a characteristic of the design and not something that can be fix with break in. The quality yes, the high level I don’t think so.
Of course, there are some (many?) users that don’t share my experience about the speaker’s balance / treble high level. Perhaps they are less sensitive, perhaps they already had a suitable high current/ power amp, perhaps a bigger room, etc.
But what is clear to me is that if that tuning of the treble is included in the design, then it must be a real thing, addressed in the design process.