My doc also knows not to scope me when I'm flaring. She knows I know what is happening and what I need (generally). Sounds like you do too. But many docs will want to play defensive medicine. Easy for them, not so for you!
If there is anything important/unusual going on, it will show up when you're feeling better too.
I suggest you avoid the scope until you feel as good as you think you can, then be sure to schedule regular (1-2 yr) colonoscopies...but it might be a little late this time to make that decision, since you have to prep tomorrow! I'm not familiar with the ones you mention.
49 year old female attorney, diagnosed UC/pancolitis 1985, no surgery but much suffering. Asacol/5ASA 6x400 mg maintenance for 20+ years; used prednisone & Rowasa for flares.
August 2008 sought care of naturopathic doctor. Food sensitivity test showed wheat/gluten, other intolerances; eliminated wheat/gluten from my diet. Probiotics (Ultimate Flora, 50 billion).
Bad flare in March, used prednisone. Humira denied, started Remicade 4/12 and doing great~