re: "shooting to wound"
question: if someone is running towards you from 15 feet away, at full tilt with the intent to do you harm, how long will it take him to clear that distance?
(about 2 seconds)
question: if someone is 15 feet away with a firearm and an intent to do you harm, they will NOT be shooting to wound, how long will it take for them to point and shoot vs your trying to aim for the shoulder or the knee you are looking for?
(they will be on target at minimum a full second before you are)
So yeah, clear that notion from your head right away and don't bring it back again. If you are ever, somehow by some miracle, in a situation where shooting to wound somehow IS a viable option, then you will be well beyond the "planning ahead" stage anyway, and your reaction will not be instinctive, but semi-rational. If you try to plan to wound, then you will be dead. That is not a guess. If events are somehow moving slowly enough, and the unique situation is strange enough to actually allow a wounding shot, not only would your case be highly unusual, but you would necessarily have had plenty of time to reason it out after the commitment to violence has already been made, and the effect of adrenaline has been ongoing long enough to compensate.
Point is, while it does happen in real life, it is so rare as to be akin to hitting the lottery. You don't plan ahead to hit the lottery.