Manufacturers are using CA now to glue the foams on which is why acetone works. They used to use a contact cement type of glue which lacquer thinner worked to take the foam off. I find I can mount my own with contact cement and have less peeling if I sand the rims first...that is what is missing from current mounting procedures. Problem is the CRC rim melts in lacquer thinner...not sure if the Jaco rim would stand up either.

Andrew I've been looking for a good tire/rim alternative too...but still haven't found one. Been thinking on trying the ones on RC4Less but I'm not sure about how good their tire compounds are...and I'm not real fond of orange rims. But they do look sturdier. I've been wanting to try those Gecko tires but they are still donuts only and more expensive then mounted CRCs.