I had a pair of forte 2k 700/28 on a sun cr18 rim......the only way I could get them on or off was to use steel levers. even after a couple of times on off.. I broke (or severly deformed to modern art) several plastic levers.

After having a flat on a commute and fighting the tire to fix the flat, I replaced the tires with panracer t-servs. No intall problem.

I guess that different tire/rim combos have issues

anyway IMHO no matter how "good" a tire is if it is a big pain to get off for flat fixes, you should question using it for commuting