Never used slin before, but... my friend juca (google juca bodybuilder), junior brazilian champion, use slin only when on HGH. He uses around 7 to 8 grams of carbs per IU. In "safe mode", they say 10g of carbs per IU but you'll have to find your own amount of carbs per IUs, while 10g is the baseline. With 100g banana you'll have around 25g carbs, wich is a good start, buttt.... if you never used before, it's safe to use some dextrose, it's more rapid in system, that's what he says. Once you get used to the drug, you can have a better control about types of carbs and quantities. Sometimes he does some pre workout protocol, thats away better than every protocol... he drinks some sugar during the training, plus he had already done a complete meal right with the regular slin shot, and plus he does another rapid slin shot right after the workout, with HGH, and drink a BIG SHAKE, full of suplements, like creatine, glutamin, BCAA, dextrose, whey, etc. But slin is very dangerous for anyone, even those who have experience, imagine for someone new to the game.
Just a question, what's the ingredients in your couscous?