The smooth rowled spurs are great for not marking as they roll rather than cause friction. Also check that it is not your zips in your boot as when i am on the ground jury for 3de i see a lot of horses with theses marks and it is the boots not the spur.Also you can get these rubber spur guard things , some tack shops do them i know Inches saddlery do them[ they do mail order] try them as if it is not the spur but the strap this will decrease the friction as they go over and around the spur so you could put them around your straps, they look like thick inner tube material with a slit along the length you encase the strap/ spur in them. Hope you see what i mean!!!
Also just try and lighten the top of your leg as this will just help realease the leg and reduce the friction.Such a problem with pink skinned horses.
Thansk Partoow, thats really helpful. I think it is where the strap threads through the spur and creates a little "bulge" if thats makes sense?!! So when I close my leg on him, it just rubs. Have used the smooth rowelled and Impuls spurs and he gets the same marks!!
Havent used spurs at home the last 2 weeks, and the hair hasnt grown back, but it didnt go pink again until i used very little round spurs jumping on sunday, and these spurs as SO nondescript, can only figure it is something in connection to the spur, but not the spur itself!!