Only just read this, quite a while after seeing how well the foams went at Chadderton.
Personally I'm a bit disappointed as I too saw a fantastic money saving tyre alternative.
As said, this is 'Toy Car' racing, the whole off road comments are nonsense IMO, most of the floor was very, very flat, and it sure as hell wasn't offroad
Also, you wouldn't need a tyre truer !! Back in the day I ran foams indoors, you just chop em down and stick em on.
We all know you need decent tyres to be competitive, tyres are today one of a drivers biggest expenses, shame we are not taking the opportunity to save ourselves a shed load of cash.
Glad I read this before I ordered a couple of sets of foams for the next round...