[NoDOHC]

Take it from someone who has been there, I drove a car for 20,000 miles with bad seal on the rear rotor. I never knew it until I had the seals fail on the front rotor, then I figured it out.....

Telltale signs:
Engine starts a little harder than it should.
On cold days, engine seems to start on one rotor and then kick the other in after a couple seconds.
My spark plugs where only slightly grey, not enough different than the other rotor's plugs to be noticeable (except maybe to a trained observer).

I doubt that Kevin made a mistake on the coolant seals and as long as you don't go beating on the car when it is stone cold, you should be ok. I would guess that the coolant seals are Ok.