I just pulled the exploded tube out of the trash. Come to find out, it's a 700 x 23/25c! My LBS put those in there when I asked him about my rim strip problem. He replaced the strip with the good stuff, but I bet he put that 23/25c in there because he didn't have schrader's in my size! Not a big deal for the 28c tires, but the 35c's were probably too much of a size difference.
My next concern is valve length. The valve he put in there was 46mm long. I'm wondering if these 32mm would work
http://www.ebay.com/itm/Kenda-700-x-...item19dc4485fc