PWO= Post Work Out
low GI= Slow burning carbs (yams, oats, brown rice, etc...)
The way you keep from burning muscle when you work out is through food that you have eaten previously in the day, or PWO the last time you trained, not through preworkout meals.
Pre-workout meals are a funny thing. Some people believe in them, but I don't see the use when cutting. You can't use the energy from food that you have just eaten. It has not digested yet, therefore, you may just be inhibiting your workout by pulling blood out of your muscles for use in digestion.
I use Udo's oil and Berlean's High lignan flax oil. These two oils taste phenomenal.
I would drop the majority of your carbs until PWO. I try to stay under 80g per day.