they should make those posts solid in the future No?
That would be a good idea & RBAs that do have solid posts have friction fit (pressed in) posts. That can be an issue depending on the QC of the manufactuerer and materials used.
Many RBAs use brass posts to reduce cost & is easier to machine. But there are RBAs that have SS posts. I have Phoenix v4s that have SS bases with brass friction fit posts. Some of them come loose. To fix them I remove the posts, clamp them in a vise of pliers to put serrations on the posts, them press back in with red Loctite. Problemed solved for me but not everyone is able to do this & they shouldn't have too. I also have Squid RBAs which is all brass & posts construction, the posts are rock solid & I never had one come loose.
I do like the idea of threaded posts as if offers some adjustability & the ability to be fully disassembled (not important to most though). Then there's always the issue of the wire holes being drilled in the posts for proper alignment. At least with threaded posts this can be adjusted, if the posts were pressed in & not loose then you pretty much have to live with it.
Keep in mind that Robert doesn't actually manufacture the RM2 so that part was really not up to him, he makes the RBAs into RM2s. I hope & have a feeling that may change though one day with new versions.
