the Michael Stich model is THE ONLY FRAME this co. made that was any good.
DOH. Get lost mate, Fischer makes great frames to this day. They had their share of "hit and miss" models but they are AT LEAST as good as any other company that makes rackets on any given day. By the way, their "latest" the M-Speed is a very nice frame as well. Just go "play with your babolat" and stop pretending like you know something/everything about rackets.
Borat, I will post pictures of the Vacuum Pro 90 (Stich) and the Pro No 1 (the two models of Fischer I own currently). But if you search for one of the "picture threads" there are loads of Fischer frames posted...old and new.
To answer your questions, I never played with the 98 Vacuum Pro Classic, just the 90. The difference between the Classic and the VT 98 was the mold/beam width. The classic had a constant beam (19 for the 90 and 21 for the 98 ) and the VT 98 is the model before the Pro no. 1 (with variable beam...thinner throat and wider head...just like the current M-Speed).