Took some videos today....very inconclusive. What I can tell you is that the suspension does move... What i can't tell is anything unusual happening.

It does seem to clonk going forward but not in reverse over the same lump / similar speed... Which is odd.

Can someone do me a favour and take a rubber mallet to your rear shock? When I hit mine about halfway up it's definitely a metal on metal sound/rattling inside the shock... I've never heard a shock make this sort of noise but both my rears do it... Hitting at the bottom gets a little metallic rattle, hitting halfway up is very rattly... This isn't using much force either!

(It's not the brake dust shield or anything else, definitely 100% the shock rattling)...