Are you certain that you haven't already got a FRSU, because the signs of a FRSU tend to be balding on the inside of the tyres due to the amount of negative camber employed to improve the cars handling? Perhaps the camber arms and bolts haven't actually been set-up, or the way they were fitted have resulted in negative camber, without actually being set-up?.. If any of that, or this makes sense
I don't think spirited roundabouts is enough to bald the inside of the tires and I wouldn't have thought that Honda's tolerances would result in that much negative camber to only have a balding impact on the inside of the tyres.
It seems to me as if the tyres are sitting like this / - \ To what degree I don't know, but continued abrasion on the inside of the tyres will result in the wear you have.
Disclaimer: Whilst I'm no expert and could be wrong - I'm waiting on my springs, which will be fitted and coupled with an FRSU, thus I have been making my own enquiries into all of the advantages and disadvantages of going for it. Hope that helps.
The thing is, where the tread is bald is where the car is using the tyres most, so I reckon these could cause a problem on the MOT - the other parts aren't worn, because the emphasis of the cars weight doesn't take it's toll on the unworn parts of the tire.
