I think the PB10Mid is closer in feel to the BLX90 than the PS85. The only current stick I know of that comes close to the PS85 in terms of feel is the Bab PSLGT and it still is very different.
The PS85 has been reissued. I suggest doing a demo between it and the BLX90 and I would also throw in both of the BLX95s into the demo. This might help you understand how various racquet characteristics help, or hinder, your game.