For my fig trees, not bushes, after I sever the Apical bud depending how or where I like the tree to shot out branches then I'll remove the leaves. You can achieve branching in two ways, one by just cutting the apical bud (no pinching off the leaves) or cutting the apical bud off and removing the leaves. You don't want to remove all the leaves since tree needs them to make its food (Photosynthesis).
I like to remove leaves judiciously to make the tree branch out how I prefer. Also, after you remove the leaves tree will branch out much faster than when leaving the leaves on it. More branches will always equal to increased number of crop production.
Navid.