Cool, glad to hear you’re enjoying the program. When I have more time I’ll post my workout rotation, here’s a quick link to my contest prep log where I just posted by “B” workout, feel free to check it out and compare. My “A” workout starts with chest and back, “B” workout starts with legs and delts, “C” workout starts with triceps and biceps. Again exercises are also rotated each workout. Hope this helps!
Regarding your thoughts on missing a session, I think with this program if you DO have to miss a session, it’s not going to be too detrimental as you’ve already hit each muscle group twice and performed 12 working sets for each muscle group so far. If you’re trying to lean out, just watch your carb/calorie intake for the day you have to miss and don’t stress too much about it.