Yes I am running at the silverbowl, and everyone out here is using foam, but they are all nitro guys, I have yet to meet anyone running electric.
Thanks POPSO1! I just found the thread you mentioned and it has a ton of great info. AdrianM mentioned a thread, rubber vs. foam, but I did a search and couldn't find it. I ran my car twice with the foams and tire wear wasn't too bad, but the front tires outside edge was a little chewed up. I didn't measure them before and after, but next time I will. Thanks for your suggestions, and if anyone has a setup sheet they want to share I would appreciate it.