tyres rubbing on wheel arch

[conleth m3]

hi all,

had a front wheel off today to have a closer look at the ap calipers as have some new pads arriving tomorrow when noticed this wear on the arch liner where the tyre has been rubbing under heavy compression of the suspension. you notice if over some crests/dips on the road or somewhere like the compression at the bottom of the foxhole.

has anyone else had this? is it something to be worried about in terms of tyre wear? does get abit better if suspension stiffened up (ast singleway adj.) would it be a case of just increasing the ride height?

doesn't seem to happen at the rear. car does sit pretty low generally. Running std csl tyres and 10mm spacers all round

thanks in advance

conleth