Wow - you've never had a Ric?
I find them very adjustable and they do the neck twist like it says on the tin.
Plus, they are field-replaceable if they go wrong.
If you are concerned whether they are in-step, you can loosen them and then do equal turns for each and tweak at the end, though if they were way off then one would be a lot looser than the other.
I don't know about massive steps forward.
Is that single truss-rod from the AC?
The two visually obvious changes on the bass are:
The new/prototype/custom bridge, which may well be a good 'un.
The pickups layout, which suits his style, but won't a lot of other people's.
If the bridge does make it into production it could well be an incremental step forwards.