personally i think the delerium is a sweet jumper for whistler style jumping - aline, merchant, 4X, sidetrack, crabapple, etc... way more pop and manuverabilty than a big DH rig and no blowing through 4 inches of travel pumping transitions... also have the option to setup the delirium in short rear chainstay position and wind down fork (66ata in 140mm mode for example) for a short and steep setup for jumping...