Read someone online call them "ninja lots" because you gotta know they exist to find them.

Oh, actually you should add water not just boil dry scraps or it will burn!

You're assuming the esthetician didn't know what they were doing, but maybe the client's skin was tougher than it looked and needed that aggressive approach to actually break through. Sometimes a wrecked barrier is just part of the process before rebuilding stronger skin, and people quit too early because they panic. Those DIY horror stories are usually from people using random products at home, not someone trained to push limits safely.

Read somewhere that a guy who used to race these things said the real trick is cracking the oil rail plugs loose first before even touching the fuel side. Said it lets all the trapped air escape from the high pressure side before you ever turn the key. Never tried it myself but your backfeeding method sounds way simpler and less messy honestly. That hand pump trick is something I bet a lot of the old school diesel guys would laugh at but I bet it works better than half the crap you see on YouTube. Good to know for when my buddy's 7.3 finally gives up and needs a full bleed.

And honestly if the slab is still curing, that tape is gonna fail for sure. Concrete shrinks a tiny bit as it dries out over the first few months, so anything stuck to the surface is gonna get pulled or shifted. Ngl, I'd rather spend the extra hour doing it right with glue than redoing it all when the tape lets go.