I personally train fasted in the AM and semi fasted in the PM (4-5 hours after lunch) Weights, circuits, carries etc 3-4 times a week in the AM, various Muay Thai drills, technique, bag work and sparring all the other times.
2-3g of HMB, 4-5g Citrulline Malate and 1-2g of A- Carnitine - about 30-60 minutes pre. This combo doesn't raise insulin like BCAA (leucine on particular)
Usually BCAA and fruit PWO
Works for me and my goals. I generally eat around 170g protein, 200g - 300g cabs and 50g fat per day (am around 175lbs with what I would describe as 'blurry but visible abs) ;0)