Ready For More Sanding

I finally got the entire car coated in buildable primer. I found a few more little dings as I was spraying it, but they shouldn't be too hard to fill. I did have a real problem with fish eyes, which I have never had with buildable primer before. I'm wondering if it has anything to do with the kerosene heater I have running in the shop? I wound up doing a really light coat over the whole car to give the heavy coats something to stick to. It seemed to work fairly well.