The "legs" are long enough, the problem is the concave profile was apparently made for narrow fork crowns, the forks I had problems with were beefier I guess. The campy tool has a little more clearance.
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1989 Schwinn Paramount OS
1980 Mclean/Silk Hope Sport Touring
1983 Bianchi pista
1976 Fuji Feather track
1979 raleigh track
"I've consulted my sources and I'm pretty sure your derailleur does not exist"