Hey all, first post in this subreddit. I've recently come into possession of a cheapo guitar which badly needs a fret level and I was looking into trying to do it myself to learn some basic guitar tech chops. I was looking up videos on youtube on how to do this when I came across this video I was just wondering if anyone has heard of this system before? It almost seems too easy, and I've never heard of it before so I'm skeptical. Is there any reason why it shouldnt work?