I imagine it was unintentionally patched out since its not in patch notes, but if it was intentionally patched out the work around for current patch would be to try and land under where V2 lands and get your hitbox to nudge V2's mid-air movement towards center at the start of the fight but it both sounds and looks hellish to go for so for now atleast I'd just reccomend down patching if you really want to lower your time.
I'm not entirely sure since I havent tested it toooooo much but from what I remember the upwards facing rocket cliping always worked for me on walls that didnt have proper walljump tags so you couldnt walljump off that part of the wall atleast thats what I've noticed with the few I have tried. As for the teleport rocket clips I have no idea how you'd go about finding those ones.
rocket zoomie is the current way of clipping out of bounds in most levels, you can watch the current full game any% wr and you'll see them being used alot.
I agree, although obviously only for category extentions... and maybe add it after rocket zoomies get patched so that way hank jr cant get patch locked??
Its just under the "Follow" button, should have the link or you can use this https://discord.com/invite/HXpXUrd54f
iirc its just not working on current patch, it hasn't been updated from my knowledge. Though I dont use livesplit
what do you use when you record? also screenshots would not be enough proof sorry.