I think you’re making a good start, JK. I’ve got no technique input as bends are not a strength of mine, but you might find sone input from Richard helpful, posted in a thread of David’s:
I found that to be a great idea for practicing bends. The riff doesn’t have a bend in it, but you can play a bend anyway instead of just the fretted note. The idea is to play the riff to hear the note, then play it with a bend and it’s easier to then hear what pitch you’re going for. You can play it all over the neck, too, not just from the starting SOTW note. I thought that was a good idea because bending at a lower fret is very different from bending at a higher fret (I found that to be true for me anyway).
Have fun playing 