Shoutouts to @Fallen and @InfiniteFun for discovery/setup help
There's a few different setups for this trick,** however this is the best universal one from testing**.
Skip seems to be unaffected by fps, tested between 50-600fps. Maintaining height is especially difficult below 60fps.
To get into the horizontal spot, neutral dash into the upper slope corner, as long as you clip the flat part we will jump off later your x position will stay 100% consistent. Use nail knockback when landing to end with a position of 21.90044, 249.56770. You can make a couple other spots work if you end up dashing too high/low on the slope, but this is the sweet spot.
Next you're going to neutral jump, and press flea brew when you have a Y velocity between 10.2 and 13.8. The best window is aiming 12.6. You can use debug input display or try to find the frame when hornets animation changes. Once you've pressed flea brew you can let go of jump at any point before it ends, and then buffer left+jump.
This should give you a wall jump, and you can turn back to the right afterwards and buffer floats out of clawline.
Note this skip is not officially confirmed legal, but likely will be soon
amending my previous post; credit to Psycho Hazard for finding this better strat. https://discord.com/channels/772964112908156938/1365522460132245616/1447093103956590736 neb pointed out to me that this was possible, i believe first discovered by monstah with reaper crest? this is a hunter's crest flea brew version that's actually somewhat consistent; hit it up three times, jump and hit it the fourth time, then input wings and pogo off of it; you can use flea brew after wings if you're a bit too low. It's somewhat tricky and the upslash bounce heights can vary, but if you fail, you can just go for the regular skip and lose barely any time. Saves roughly 3s over regular flea skip.
figured i should post this here; consistent setup for skipping the orb on the right side. make sure you hover slightly left as you do the double jump off the crab, then hug the right wall after the clawline, otherwise the enemy will bonk into the ceiling and be too low. also for bonus points, pogoing the first spike ball before it visually spawns is consistent for me by beginning to count immediately as i hit the orb, then counting to 4; you should be inputting pogo so that it lands where the orb is as soon as you hit 4
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