I have the same printer, and I have to agree with you. It really does suck leveling this printer. I installed the BLTouch on my Ender 3 (along with upgrading to a silent board), and it was totally worth it (but definitely do your research). I plan to do the same to my CR10 S5 when I find time. For your question, you would need the kit with the adapter since it comes with an 8-bit board. Someone correct me if I’m wrong. If you’re gonna go through the trouble, you might as well upgrade to a 32-bit silent board while you’re at it.

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