Match the traction to the job and you will be doing the best you can. Additionally you might suggest that there are better surfaces than concrete for cutting cows on. If he were a steer roper he would know this. Is there some type of shoes, or shoeing methods that anyone has found that works. He works cattle, so he may be pushing a bit.
Any bit of information helps.
I have never used it so can't extol its virtues. For horses on concrete I would reccommend drilltek over bouium. The metal matrix that the tungsten carbide is bound to in borium wears down at the same rate as the tungsten particles thus leaving smooth nubs that provide little traction. The matrix in drilltek wears down at a faster rate than the tungsten carbide leaving a rough textured surface to provide traction. Drill tek comes in various particle sizes, I use the smallest size that will provide traction on the surface you most need it on.