Dude, it's exactly like that thing where you realize how much you've been just going through the motions in other areas too. I was rearranging my bookshelf last weekend and found my old high school journal and holy cow, I used to write paragraphs about how "the sun was a golden orb of fiery passion" or something dumb like that. Now I just write "it was hot out" and move on. Same with music - I remember thinking my first guitar riffs were genius until I learned what a chord progression actually was. It's like once you get a little bit of good info, the whole world opens up and you can't unsee the bad stuff you used to think was fine.

So why even call it 3/4 inch then?

Ugh, I learned that the hard way too. My cheap deck now has a permanent wave in it. Should have listened to the pros.