Thanks for the heads up. I have just finished my 2nd coat last night, taping diamond pattern, this morning and I AM DONE! I did use a benjamin moore floor primer and now am using latex. It is not a high traffic area, so this is why I wanted to convert to lates, simply easier to handle.I would use something better than Kilz which includes just about anything else out there. Generally speaking, you can put a superbonding latex primer over oil and then finish with latex products. Things do not work out so well trying to oil over latex finished surfaces.
The bare minimum I would put on there would be a water based epoxy. Latex products just do not hold on walking surfaces. Is oil not available in your area?