Not sure what is happening to your foams but Im on my original sets on both my 2wd & 4wd buggies which can be used upto 3 times a week, and have been for the last 2 years. If it was decided to ban the use of foams then unfortunately this would be the last winter we race here, it would just be to expensive for tyres on top of the fuel costs.
Things seem good at the club! No point rocking the boat just for the sake of it. Unless it was for wider lanes lol