Quoted from Monk:
This is how mine works with the new post. Many others work better though. I’ve tried a few different things and nothing works.
Last effort attempt that worked for me, for which I now only get a bounce back maybe 5% of the time.
Check the coil sleeve for the post. Factory, mine was long enough that it was going into the hole in the PF. I trimmed mine down to where it just barely makes it past the retaining bracket for the mech (the bracket the post goes through). This created more "slack" in the post. It still doesn't contact the PF but it has some wiggle room now. This wiggle room gave it enough of a cushion to now prevent the bounce backs. Worth a try if it's bothering you.