Typically wet eat, then feed, then shoot. It can all be done within 15 minutes or so. The Lantus doesn't onset for a couple hours, so they don't have to eat all their dinner at once. I fed Neko several meals over the first part of the cycle.
I test before food then before shooting i check again. I know it will go up and sometimes I feel it doesn't go up that much n wasn't sure to stick to 9 I did shoot8.5