It's more of a pushing the envelope thing for me, to see what's possible. And I share the concern about the fuel pump. Notice my latest 1000-mile tank I didn't run it dry. 12 gallons when my biggest fill was 13.8 so I left 1.8 gallons in the bottom. Unless I have a shot at breaking my distance record I won't push it.
Perhaps you need to give some tips to the masses here. I have been able to push my Del Sol past 500 miles and that was cool but now that I see your going past 1000 miles in a Honda Civic I need to change it up. What other than aero mods are you doing to get that kind of MPG!? I know that your commute has a lot to do with it and right now I have a wonderful setup thats 34 miles round trip 100% 50mph highway.
Pulse and glide with eoc. That's the biggest thing. It's a little tougher at 50+ mph, but that's certainly better than 65 or 70. If you do a 45-55 P&G cycle you should be able to kick it a notch higher. Look at getting a gauge - since you ahve a '95 you'll have to wire in a MPGuino instead of a Scangauge. You're doing really well without a gauge.
I got 612.3 miles to my last tank. I know I could get more, but it would pretty much have to be all highway driving. Or I would have to start making major modifications with aerodynamics and weight reduction. However, I'm pleased with my FE, and see no reason to really go to such extremes. I like the way my car looks, rides, feels and gets great mpgs.