I usually finish training at 9pm on weekdays. I'll hit my system with my PW shake. about an hour later i'll have another P+C but it's a small meal and the carbs are low gi. I've been told this helps to regulate blood sugar levels but also i've been told that hitting a pw shake straight after training, the insulin spike does not last as long since your body puts those carbs into use and soaks it up like a sponge!