My trainer has suggested I start riding my western pleasure gelding with rock grinder spurs. He is completely spur broke but is a bit stubborn moving his hip over, wearing my 8 point dull rowels really don't do anything no matter how much banging and rolling I do. But the rock grinders make me wary and I've had a friend telling me to not get them because they can be too harsh. Does anyone have any recommendations on something that is a step down from a rock grinder? Pics or links to where I could buy this said spur, if it exists would be awesome.