Question for SPA umpires.

Rule 6 Pitching
Sec 4 The pitcher may use any wind-up desired providing specifics a-d.

Situation
The pitcher presents the ball then delivers the ball legally.
The pitcher mirrors his right arm delivery with his left arm.
Swinging both arms simultaneously after presenting the ball legally.
So the ball is presented, both arms swing back and pass the hips together and both arms follow through completing the delivery and pitch.

Legal or not?

Perl.. you might get more answers if you post this on a SPA site.. this is SSUSA.. that being said I have not worked SPA for many years but as long as the ball is released on the 1st forward swing after passing the hip I believe it is a legal pitch