Steve, i remember that one also. But like the others, i think it also went out of business. Funny you should bring up that time. In the mid- to late 80s there were probably 20-30 specialty publications like the ones you mention here and within that mix were about 9 different frequent flyer publication that came later on after i started. While I'm sad to say they all failed except for one (Best Fares which in the long term changed their publishing model since they don't publish hidden cities zones any more), I am pleased to also say that we were the only one to make it from the frequent flyer arena.
Anyway, i think the load factor information is still available from the DOT web site if you care to download all the massive data located somewhere on that site. Maybe someone else knows other sources. A good idea on the bumping..... though with the announced change fee and use it or lose it, that may make a small change over time.