The last 4 cans of GW primer I've used have been a complete waste. Spray maybe 5 models and the cans just stop spraying. One of them the nozzle clogged despite following standard practices for keeping it clean, and nothing would clear it. Also went on way to heavy, dusty, and just all around bad. And it wasn't just a bad lot, as 1 was white, 3 where black, and they were all bought at different stores/at different times.
Been extremely pleased with Krylon Indoor/Outdoor Primer. Cheap, covers well, hasn't given me any trouble at all. Did I mention 1/5th the cost of the GW garbage?