These are some grooves inspired by some footage of Will Calhoun with Living Colour I saw recently. In his case, he was throwing in some quarter note triplet ideas in a rock groove with his LH while playing straight 8ths with his right. That led me to experimenting with playing one set of quarter note triplets plus a quarter note with my feet (which creates a pattern 3 beats long, so it goes over the barline nicely in 4/4) while my hands play a straight rock groove. I was thinking of the Zep tune "Ten Years Gone", both in tempo and general vibe. The following filmed examples show me working through this starting it with either foot, playing the "footings" (as opposed to stickings) in doubles and paradiddles, putting in splashed hi-hat, and reversing the hands and feet.