I had my first heavy bonk moment on the court last night, and it told me that I need to feed myself more. I had been eating as clean as I could, and my calorie intake was down around 1,800 a day or so. I had a lesson last night, and the coach that I am working with absolutely grinds me into the ground - totally worthwhile (he's a 5.0/5.5 player, and an awesome coach as well), but after about 20 minutes, I had nothing left in the tank. Had to gut it out for the remaining 40 minutes with no energy to draw upon. I went home and re-fed myself and have made the adjustment today as well.
On a positive note, I'm now down 13 lbs since the middle of May, so that's progress....
Back to the Prestige MP. Should have never deviated.