[Cockerill]

OK, my last post on this issue.

If everyone started running foams I guarentee that I would be turning up with multiple sets of different compound/diameter tires, and would definitely use more than one set in a day. I know this because someone with a lot of foam tire off road experience has told me what it's like. So if you wanted to be on the 'fast tire', like you do now with rubber, you would have to do the same.

Secondly, regarding the spike issue, why not contact Steve about it, as he stated if you want more information. I have my own ideas of why they have the rule they have, but to get the correct answer Steve is probably your best bet.