Good question.
I WOULD NOT ADD THIS IN DURING A MEET PREP block.
But in the offseason it is fine. And probably a good idea.
Adding them on a GPP/Conditioning day is great.
Don’t max out, but do reps with lighter stones and get the heart rate up a bit.
Stones to shoulder, stones to box, up and downs, mix it up.
You can work for time (eg: sets of AMAP in 30 seconds, 60 etc) or a pre determined amount of sets and reps.
Be sure and watch the Stones course on the site.