definately not the old lead based oils where you could use a mop or a push broom and it would still flow out like glass, but tipping off a flat door is still easily done with the acrylic paints today, trades secrets are just that, good luck, 29 years of painting you should be able to figure it out, i wont tell you but i will give you a few hints
1. its not oil so dont treat it as such
2. use the quick drying characteristic to your advantage