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Nope - these were just weird bikes. Could be run as XC or AM with a longer rear shock and using the various mounting bits on the mainframe. Steep head angle is so it will work as an XC bike. Slackens a bit as you go through the travel but whether it gets below 70deg I've no idea.
Crazy BB height was something the designers thought was important to a north west coast US designed bike.
Geometry is off because shock is uncompressed.
Might look normal under load.