Totally agree with the last bit .....gotta be aligned at your Release Point in a manner consistent with what you are going to fire and have it all pointed in the right direction. Lynns wooden golfers flail is the perfect tool to highlight the different options. It rules out horizontal left hand motion , guarantying Rhythm .
naw...mean SIMULTANEOUS...makes complete sense to me...you AIN'T GOT TIME NO MORE TO SEQUENCE...they both gotta go and FAST to get the sweetspot to the ball....I'll find the reference for you....