Ordered my Diablo in late 92 and took delivery in early 93. Knew another guy bought one in summer 93. All diablo frames round that time were built around Project 2s. If it's got Project 2s then that's what geometry it was made for.
Dave would "suspension" adjust if required back then but it cost a bit extra.
When I had new down and top tubes fitted to mine in late 94, Dave adjusted the geometry for 1,25" suspension which was all the rage at the time. This adjustment was in reality just a shorter head tube (protruded less below the down tube braze)
Completed: 94 Stumpjumper w. M733; ; 92 Dave Yates 731 ; 97 Parkpre Pro-Elite ; Pace RC200 F6 ; Pace RC300; 82 Gios Super Record ; 97-8 De Rosa Giro D´Italia; ; Banani SPX Track bike ; 89 Alan/Mavic Cross Bike ; 05 Focus Cross Team ; 90 Look MI-80 all-Mavic ; 12 Focus Izalco Team/custom build ; 11 Focus Thunder Custom build
Projects : , Brouwer all-Mavic
Stripped : Pace RC303
Gone : GT Karakoram
Stayed in the family: Kuota Kharma, 04 Stumpjumper FSR
Ceased to be : Dynatech MT3, killed by corroded seatstays.