Hello!
I guess the problem that I have with *not* grouping triceps with chest is that your triceps will not get very much rest if you work them as a secondary muscle group during the chest routine and then 1-2 days later work them as a primary muscle group. They will live in a perpetual state of exhaustion and that will lead to overtraining.
Same with quads, hams, and calves since hams and calves contribute to the quad exercises (squat).
I guess I don't envision focusing on personal records for non-major movements. I would classify squat, deadlift, overhead press, pullups, and bench press to be major movements. I would clasify tricep dips, tricep presses, bicep curls, etc., to be minor movements included simply to help achieve gains in the major movements.
I have had very little problem with tricep exhaust when resting for 4 minutes before changing exercises (or before changing bodyparts). At 2 minutes, 80% of an average person's anaerobic energy stores have been replenished. At 4 minutes, 95% have been restored.
MP906 is correct about rearranging the exercises. In general, move from the center of the body outward, from major movements to non-major movements, and from compound exercises (multi-muscle group) to isolation exercises (single muscle group).
Overall, whichever works best will be individual to you and it won't work best for very long.
P.S. What's a mule kick? Is that where you stand on your hands and knees and kick your leg backwards (supposedly a bodyweight glute exercise)?