To counteract tipping with a newly potted mango which do not have the root ball filling the pot, I use a thick string and tie to something nearby like a fence, or use a cement block where I can change the direction of the support. Once the root ball more fills the pot then the tipping isn't as big of a problem since sand mix is pretty heavy. Once the whisky barrel pots are filled with roots they are ready to go into the ground and I start the process over again. The only trees I have had difficulty with tipping are the really tall and bushy trees, Shorter than say 7 feet or so do not have any problems with tipping over unless they are really bushy, in which case they could be thinned a bit to allow wind to move through the canopy.
The best way gritty mix helps with tipping is because the tree doesn't grow, so you do not have much problems with tipping on a tree that is stuck in a bed of rock/clay. Oh, and it will take forever and a day for the roots to fill that pot, since the mix is neutral to high ph (from the high ph water combined with neutral soil) instead of neutral to acidic as well as always stuck in a bed of damp rock/clay.