LCA pivot shaft

I don't have any problems with the polys at all, as Bill said there is a lot of pressure on the torsion bars and even so a little bonded rubber isn't going to make much difference in retention.
The t bar retainer clips are hardened and you would have to do a lot of damage to the steel socket to get them to push out.
I don't use adjustable strut rods either. (but have poly bushings on them)
The poly bushings transfer a little more road noise, but I'll take that for the firmness of them.

One thing to note, is that you can shim the T bars in the front sockets with washers to keep and forward/aft movement down to a minimum without having to mess with the clip end and possibly alter the design allowing it to come out.