Is a constant-leg up stand allowed?

Recently I looked into various throwing and standings techniques and surprisingly, as you can see in the picture, this came out.

Before trying to find what fits me the most I just threw like a basic RvB but never had any success in aiming and then hitting my target. This is my "endproduct" which I'm quite happy with and now reaching better averages and darts actually landing (more often) where they are supposed to be.

Because I've never seen such weird positions towards the board, except for maybe a little bit on Aspinall:

Is this fine with the rules?, and is this really recommended to have long-term success and growth in my averages?

I know darts is a sport that is very unique to every player in techniques and stuff like that but every advice would be appreciated, thanks :)

Recently I looked into various throwing and standings techniques and surprisingly, as you can see in the picture, this came out.

Before trying to find what fits me the most I just threw like a basic RvB but never had any success in aiming and then hitting my target. This is my "endproduct" which I'm quite happy with and now reaching better averages and darts actually landing (more often) where they are supposed to be.

Because I've never seen such weird positions towards the board, except for maybe a little bit on Aspinall:

Is this fine with the rules?, and is this really recommended to have long-term success and growth in my averages?

I know darts is a sport that is very unique to every player in techniques and stuff like that but every advice would be appreciated, thanks :)