One thing to keep in mind is that stomach issues can be a symptom of rectal inflammation for us UCers...slow simmering rectal inflammation. If you have the supps...why not start using them to see if it helps. Think of it as an experiment...lol...MY experiment on your butt..;-)
The asacol probably doesn't help on its own because it won't reach the rectum.
Don't cross it off your list too quickly, It has a job to do, but your expectations may be on a different level than what it's capable.
Oh...how many asacol in the past week have you actually missed since you're back to your unhealthy ways?
Trust me on this one...for at least a week.