For doubles- It is pretty easy to just imagine targets near the center T and both side Ts. Use the center T for hitting between the opponents and the side T for heavy crosscourt and down the lines. For singles, the center T is the avoid for about 6' in any direction, and the both side Ts are ON the line, so we have to move in about 2' with the target, right? Remember these are mainly for creating shot paths or vectors and not so much to actually hit the targets. My mindset is to clear the net and go hard at the target. I usually end up flying or overshooting the target a bit (2-8'), but that matters little cause it still will stay in due to the shorter nature of the targets. The triangle aspect of the targets relates more to singles and using the botton 2 cones as gates or a funnel to the target area and/or shot vectors. Also remember the big idea here is to focus on shot vectors that allow us to stay clear of the lines, where you may miss, get cheated, or get a bad call.