Here’s Jeff Loomis playing Yngwie with DSX technique and killing it:
The other players you are name-checking are not all USX players either. Joe Stump, yes. Every other person you listed (Blackmore, DeMartini, Moore), no.
As others have said, your core motion seems to be working pretty well. Every minute you spend trying to make a different technique work is a minute you could be spending working on testing your fretting, hand sync, playing across the strings, different patterns, cool vocabulary, etc.
Even then, you can still spend five minutes here and there trying to learn other techniques. This is the big mistake: we’re not saying you have to stop learning other things. We’re just saying, what you shouldn’t do is pause your entire skill development because one technique doesn’t work as well as another one.