Leg protection

I have messed up my shins a lot in my course of unicycling and i want to know what people preferred leg guard/armor is!!

At first i rode in kh leg armor but found it way to hot during the summer and as i got better i ditched them and then got into aggresive down hill and fell and got some 661 shin gaurds to replace my kh shin pads

do you use shinguards if the pedals are only plastic? or just if they have metal pegs?

i used them a ton in the beggining but when i get hit with a plastic pedals i cant even tell, but if i get hit with a metal i get over it, i would only wear them with metal pedals