This was discussed earlier in this thread:
But didn't really come to a conclusion. For a goal of reducing body fat %, for someone on a low-carb diet with a high body fat % (20%+), is the insulin spike provided by Surge (or similar PWO) countering some of the effects of the low-carb diet? My initial thinking is this would throw you out of ketosis, which is the whole point when the goal is fat loss.
Thib's got some great stuff on body comp and in his article Refined Physique Transformation here:
He has a recommendation of less than 30g carbs for men over 20% BF. Obviously this would preclude Surge, or would at least cut it to a half dose with zero to trace carbs the rest of the day. But, for a focus on body comp., you'll want to preserve lean mass as much as possible or even increase, which would lead those PWO carbs being essential.
Anyone have an opinion on this? Better yet, anyone have any personal experience? I'm sure it's not a clear-and-cut answer, but interested to hear what others think.