Bought it last last year (11/18), and it arrived early this year, actually.
It's both the D & G strings, now that I sat down and started playing it just now.
Maybe it's just me, and I dig in a bit too hard... but this doesn't happen on any other bass I own.
It's really just that the angle of the string over the saddle on the D & G strings is shallow enough that those particular saddles end up having the least amount of downward pressure.
That must be the hipshot bridge? It doesn't have the mute assembly.
EDIT- sorry, I see you were replying about an issue with Hipshot
I fully get your point though. Different styles of playing and all that.