Aren't the quick or instant versions just 'pre-gelatinized' ? I don't use oats often, so I haven't deciphered a difference with those versions and the regular oats.
all rolled and flaked grain is pre-gelatinized, they are steamed before rolling so the smash nice and flat. The instant oats are just cut smaller and rolled thinner. I have also seem 'baby oats' which appear to be maybe steel cut oats that were then rolled.