I have to agree on a few points...I don't use small-small so I don't care if there is rub there. What I do use consistently is big-big. On my new SRAM Red bike, i get rubbing on large large and the 2nd and 3rd largest cogs on the rear. This Red bike from Bike shop A is 52 tooth big ring. So based on other posts, this bike should be the easiest to adjust. With the Yaw FD, there is no trim. IMO, if I spend the $ for Red, it should work perfectly. Should I be able to adjust it myself? Sure...but Bike shop A should be able to adjust better than I, especially why it's brand new.

My Rival bike has a 46 big ring and works flawlessy in every gear. It seems to be a matter of experience in one shop vs another. I'll likely give Shop A the chance to adjust it correctly.

I got got my answer from you guys and a great video, so thank you for your thoughtful replies! Cheers!