I definitely have. I wouldn't call it a weekly cheat but I have a 24 hour period of higher calories which is usually based around my weakest body part. I'll start 1 meal prior to training my weakest body part (legs) and finish the meal prior to training the next day. All the meals will be higher carb with the exception of my ore bedtime meal which stays the same. I've always felt this allowed me to go a little harder on that weak body part day plus the additional calories should help aid in recovery. Sometimes I'd add insulin in the mix provided the situation warranted it. I started following this protocol a couple years ago and have had some good success with it. 95% of the time, all meals are clean but the additional calories definitely curbs the desire to go stuff my face with a dirty cheat meal. Either way, 1 meal isn't gonna be the nail in the coffin if you are in the gym training 5 days a week + and eating a calorie restricted diet.
M18