More pennies for thought … I train Brazilian jiu-jitsu twice a week and prefer to keep it separate from my resistance training/weightlifting. That’s in part because BJJ is time-consuming and part because it is not just aerobically-draining, but psychologically-draining as well because there’s a high skill element involved. I do add an >20 minute conditioning routine after jiu-jitsu training. But otherwise, I do strength Monday and Wednesday, and BJJ/conditioning Tuesday and Thursday.