Yeah, i just got a used pair of 03-04 4FRNT MSP's, they were almost perfect. They have a little slit in the base. I want to fill it myself, cuz i really dont wanna pay 100.00 to have a shop do it when i can do it for 5.00, i would really like to know a step by step process that you have used that has worked well for you. I have looked at the other threads on repairing with p-tex, but they arent very in-depth. Any help is greatly appriciatied