I see some where small trees (the size of my finger) are rubbed and a scrape right by it, I think this is very young bucks fighting the tree so to say. I can honestly not recall seeing a scrape under a limb less than 3 1/2 feet and usually not 4 feet. I have seen them that were pushing 6 feet to the licking branch. Something I am seeing on trailcams now is a LOT of bucks visiting scrapes but not cleaning them out. The little bucks are chasing pretty hard too.