Hydraboost Groaning , will this ever go away?

[PhillySpeedNYC]

I just had a kit installed on my Mustang and the brakes work great but the steering makes a groaning sound and i get some minor pedal kickback

the shop went through all the steps to bleed the air from the system and i do not see any air bubbles in the pump reservoir>

now i just got home and pulled the cap and saw a bunch of air bubbles that broke clear in 2-3 minutes. it seems to show air bubbles every other time i drive the car.

i keep turning the steering left to right and no real help

does it take some time to really get all the air out?

i only have 10 miles on the kit so far and i am super happy how it stops i just want to solve this groaning noise.