Greenside sand technique with SA

I'd love to hear about successful technique for greenside sand shots by SA players.

I struggled with what I think is too strong of a grip and too shallow of a swing for bunkers. I finally decided to do the basic open stance (about 30*), with the shaft leaning forward (along my toe line, not the target line) maybe even a bit more than the full shot setup. Face open, pointing to the target. And I grip down to the steel. In other words, I'm making a pretty conventional SA grip and setup, except I'm 30* open to the target line, and the face lines up with the target line. Ball position looks like it is in the center when I'm angled 30*. But if I turned back to parallel with the target line, it would be up by my lead foot.

My thinking was that in effect I was making my grip about neutral after the 30* open stance and open face are taken into account. The significance of the grip strength is that it is hard to get height with a strong grip. So if I'm coming into the ball with effectively a much weaker grip, the wrist hinging will be such that I can get the ball up.

And gripping to the steel and the outside in path to the target line both make the swing steeper into the ball. Which IMO is helpful.

I try to create a little extra steepness going back, then try to hit the backside (bounce) of the wedge on the sand, driving the clubhead under the ball in that fashion. And a short arms follow-through.

Now, that might sound like I know what I'm doing. The reality is, it works better than anything else I've tried, and that's about the best I can say at this point. I'm still a mediocre sand player. I imagine there is a better way. For sure I want to hear from good SA sand players.