Better Bonsai Backbudding By Thinning (Not Pruning) 

Start thinning your bonsai in order to get backbudding, and create a structure that you can prune back to to keep your bonsai small!
In the video I show on 4 species how to thin the canopy:
Thin out Elm Bonsai in Summer
Thin out Jabuticaba (Brazilian Grape) bonsai in summer
Thin out Yew (taxus) Bonsai in Summer
Thin out Larch (larix) Bonsai in Summer