Eco will only fade way if people migrate to another class and perhaps forgetting the charm of ECO class is everyone have the same 2 motors to choose from, same cheapo speedos, and with its quirky shells and realistic looking wheels and tyres meant something quite different from the norm, and same for the racing part too cos quite often we have a laugh and don't mind crashing into each other (that much).... and if we can get the tyres to work better from the first run to the point they are showing inserts I am sure it will be even more enjoyable (hence I agreed with Rob about allowing additives). Failing that I already said if there is a blinky 17.5t class but any rubber I would run worn out ECO rubber with a Mazda6 shell to see what it's like too!
Had ECO have not existed then yeah I would probably be racing blinky anything but I would be very reluctant to spend 90 quid on a 17.5T flavour of the month motor.... and perhaps forget my unfounded concern on having to run $$$orex rubber, since we don't even run BRCA rubber tyre rule in 13.5T perhaps I shouldn't be too concerned about the proposed-and-passed BRCA Blinky 17.5T class will be any different... silly 'ol me lol... but then I might be excluded for running a fixed timing non BRCA HW stock motor
its a lottery if I buy a good set on not ,especialy if some one has already "nicked" the best ones 
... plus they take a lot of "fiddling with" and know how to get them on the pace.Ive brought more than one set that either had one poorly formed tyre or one hard one (this dont work out cheap) At the mo im not prepared to spend time and effort farting around with Eco rubber to "keep up" in whats suposed to be a simple class 
