16/16 meter is widely used in progressive music, no matter funk or metal. Metres like 12/16 or 28/16 are less common but feel free to try them out - just for practice's sake.
Each excercise is available as a MIDI file. Tempos vary between 90 and 125 BPM. The main rhythm is played by a bass-drum. Hi-hat plays straight fourths. Handclap stresses the first beat of each bar. MIDI-files of that kind can be used as a replacement for metronome when playing scales, arpeggios, improvised riffs and melodies. Concentrate on the rhythm pattern you're hearing and play whatever you like. Practise until you become a rhythm-robot!