I've never really seen reining up close. I saw this idiot at an Arab show ( warming up for a reining class ) who had like no joke 8 inch shanks on his stud and like 3.5 inch spurs. He liked to use both at the same time very harshly. The poor horse was so scared and confused.
Rollkur is pretty horrible, too. I did a persuasive paper on it...and in my research I couldn't believe what I found. It's so sick! Why don't people just put in the time to actually TRAIN their horses?! Ugh!