duel tank covers?

[al's71gmc]

I've got them on mine. I was pretty happy about the extra fuel capacity til I read about the side impact danger. Being outside the frame rails makes for an unpleasant expirience if you get t-boned and the tank ruptures. Now I'm thinking I'll drop them and put a blazer tank in back along with the behind the seat tank. 21 gallons at 10 mpg just doesn't give me enuf range. So when I go into the mts. I have to carry extra gas cans. Either way mine are both empty now.
And you are right about being a tight fit. Ther's room for the nozzle, but not much room for the gas cap.