Speed balling, yo?

Nah.
But I'd be down with cross-fading though.

"D-IX is a methamphetamine-based experimental performance enhancer developed by Nazi Germany in 1944 for military application.[1][2] The researcher who rediscovered this project, Wolf Kemper, said, "the aim was to use D-IX to redefine the limits of human endurance."[3] One dose contained 5 mg oxycodone (brand name Eukodal, an analgesic opioid), 5 mg cocaine, and 3 mg methamphetamine (brand name Pervitin).[4]"