Ready for a different opinion? If you let that plant sit in the cup another week it will grow a bushier plant. Right about now your roots
have hit the insides of the cup and are ready to grow vertically, up. If you TP now the plant will re-direct it's energy into roots again. You
will notice little or no vertical growth for a week or so. But if you leave her in the cup an additional week the plant will grow many more
branches. More branches = more bud sites.
BigSteve.