Church decorative tree (flowering plum I think), planted 3 years ago with 18" dia root ball from nursery.. Grew with a 15 degree lean (probably due to prevailing winds near hilltop). Present diameter about 3" at 4 ft ht, can see root movement when pushing on it to about 3 ft out. Plan to prop to straighten - the question is how much to do at a time and interval between movement. Can I pull it vertical all in one shot (about 3" root movement 1 ft out from trunk) or best to do over a couple of years? Would like to do in one shot and prop in place and compact soil around roots. Root compaction: what is best - just stomp with big feet, tamping down with sledgehammer head, sheepfoot roller type compactor, or ? Which is less harmful to the trunk - padded loop and pull on trunk or 4x4 prop with pad? Thanks.