Right now I'm trying to play one that I wrote for my band.. It begins with a furious two-handed 16th note tapping line @ 107 bpm for 6 bars then moves into a very synchopated "driving" 16th note pattern based out of B2 for another 4 bars, then moves back to the initial pattern for an additional 4. It sounds cool as hell, but I'm definitely pushing my abilities!! That's good though.. I like pushing past my limits!