I hate coke.
There. I said it.
I'm a weird one, but you know that.
I've had a couple bouts with habitual speed plus occasional use over the years. When I tried coke in the 70's, I didn't really like it. It made me feel geeky and on edge. People thought coke was the greatest thing since fish grew legs in the 70's, so not liking it was not due to lack of trying. I actually bought a few different grams myself, thinking it was the cut or something. I have also tried it occasionally when others had it over the years. My brother knew a dealer who broke up multiple ounce purchases at his house. I tried his product uncut a few times.
Always the same. The feeling was unpleasant.
When I was injecting speed, same. I'd try various grams which were supposed to be pretty pure, pay the tariff for that from reputable people.
Banging it made me feel horrible. Sweats, nausea, shakes.
One time, I finally got some crank after banging the coke (and hating it), and my friends said that I went from pale and bad looking to looking fine when I banged the crank. I always liked speed. Always did not like coke.
This was considered pretty weird in a person in the 70's. Sports stars and Wall Street professionals were loving coke and the backlash had not hit yet. However, I've met a person or two similar to me over the years since. Guess some quirk of metabolism or body chemistry.
Anyway, just a data point. Coke might scratch the itch fine, it might scratch it a little (likely), and it might be totally different for you.