The MS PP2 is the exact same stick, just no force feedback motor so it has a much smaller/lighter (base.) It's not as firm in the centering forces (wish it were), but there's no trim wobble at slower speed. The only forces I had enabled on the FFB2 were trim and stall, like you, and adjusting to the PP2 was easy.
I was expecting to stall more, but I'm not since the screen shudder is a good enough indicator. I was hoping my gunnery would improve without the trim force wobble, but the PP2 has it's own stability issues having softer centering springs - hard to micro-aim.
I may cannibalize the one of the 3 PP2 I ordered used and try and replace the trigger/hats in the FFB2 (the supporting holes are plastic and they got worn an unable to make consistent contact (spazzy trigger and hat views.)
I found the 3 used PP2's on Amazon with varying prices - one came already pre-spazzed, but the other two are working fine.
I was considering getting one of them newer fancy virpil/vkb sticks but $$ and supply issues and an uncertain fate with AH2 made the PP2 more viable.
I think Eagler mentioned he was happy with a warthog's centering springs.
Yeah I've got the same but on the elevator channel. It's a persistent but not-predictable problem. Often happens during a fight but then reloading AH fixes it for me so I suspected a bug.
Could be I'm the last rat standing with a Sidewinder then. I really like the centring force, the loading at speed and the buffet shaker. How did you manage to make the transition back to non-Force Feedback, do you miss it?