Try and see.
I think having the carbs before your workout makes more sense as you glycogen stores will likely already be low before the workout. You can't run a car very far if the gas tank is low to begin with (unless it's an economy car). In case that wasn't clear, IMO adding the carbs before the workout is a better idea (including at least half of the Surge Recovery). Further, you can add an extra (as compared to your current level) 50 grams of carbs before workouts anywhere from 1-3 times per week.
I'm not trying to turn this into a debate about when you should time your carbs. My main point is just TRY and SEE. Stick with an approach for a period (2-3 week minimum) and judge the results for yourself.