I guess I have gone in a completely different direction...I use snaps on my outside and inside ankles (the elastic webbing of the boot to be exact) and of course snaps on the inside of the shin armor to match up with the ankle snaps. Problem solved, I have never had issue since. Even when going up and down stairs my shin armor stays just where they need to be...no more riding up on top of my boots. Hope this helps.
Cheers!
~Kevin