No fouling issues with the 55 profile, that i know of?
Done a few '000 miles now & no problems whatsoever...apart from sitting marginally taller in vehicle (55 as opposed to 50 on Scorpions)
I take it to a specialist LR workshop for all its servicing/MOT's etc. + never commented on it & just passed its MOT , too.
I think you may be confusing it with the GG AT3 45/75 (which is a lower, wider profile) and i have seen on this blog that you will have to do some adjustments for those.
I must say; These tyres are brilliant & so much smoother (Again; A higher profile than Scorpions) + not any noisier than the previous Pirelli Scorpions.
Havent had a chance to use in the mud & snow, yet...But winter isnt far off!
But I would definately fit them again & recommend them.