I have a TY754VBAAA box with a lightweight flywheel and as it's my first with both (either or) please help! all drive train oils replaced within last 10k, on a legacy GTB

steady throttle, 3rd exit around any roundabout, i feel as though the steering wheel is lightly tugging, letting go, then tugging again. its as though for a second, diffs engage then disengage and repeat. does it at every roundabout and i havent yet figured out if the interval of tugging is related to speed or steering lock. anyone come across this before? i dont think it happens on throttle but i will be monitoring.

 

Power steering? What colour is the fluid? Change if dark, but really would be noticeable at low speed manoeuvres as well

 

Fluid changed and all bubbles bled. It's very very strong tho, I came from a B6S4 and this feels like I'm steering a rabbit