yes they need to touch to dock, that's how magnets work.
Well, the way you did that made it hard to quote you... well, whatever.
Docked entities exerting a force on the objects they are docked to: Let's say I dock to a larger ship. Can I fire my thrusters and cause the larger ship to move slightly?
Angle/wedge docks: I
strongly urge you to consider this as it is a much requested feature and would make a vast difference in many unique ship designs, especially when dealing with turrets.
My own question (I know you might need to ask Schema): Will the turret revamp fix the annoying "blind spot" where turrets cannot aim 90* upward? That's been causing issues for my recent ship designs because I can't fit turrets at enough different angles to cover those blind spots and still look good.
The main thing is the ring itself, and the general shape of it. It doesn't matter whether the corners are rounded or not, because it still "seals" regardless.
Here is the basic shape of my (subject to change) USD. Can we call this USD type 1? (totally not full of myself)
I like this, but I would add a docking block at the bottom center and a plexdoor that closes all but the bottom and center two blocks. This will allow a ship with a 1m wide, 2m high port to dock to the same port. I currently have a shuttle that would need such a modification to be able to dock practically to this device. Re-designing the shuttle to fit a 3x3 opening would compromise its purpose (or at the very least its looks) as a super-compact vehicle.
The other option would be creating a USD type 2 to accommodate tiny vessels and ones preferring a smaller hatch for cosmetic reasons, although I like this option less because it would be less universal.
I'd also like to have a way to dock the top hatch of a small vessel like a fighter to the station and jump or ride an elevator five blocks up into the station.