Gene,
Yes, the ultracoat is more expensive than the towerkote. However, with ultracoat you can up it up and pull mistakes out and then reapply the covering. With towerkoat once you make a mistake it's premenant.

I used Towerkote I gave up on it and threw away what I had left. I wouldn't even give it away it was so bad. I wouldn't use it again if I was given it free!!!! [:'(]

Ken