it's best to have a very lean balanced meal when you are peaking. my idea of a balanced meal is 40-50g protein, 40-70g of carbs, ~15g of good fats. i have no direct fat source at any time when when insulin is active (avocado, peanut butter, etc).
i'm using 1cc slin pins 29 gauge x 1/2 inch. injecting in my lower ab region, between my belly button and my side sub-q. i would really recommend you get .5cc syringes as it is easier to read and adjust your specific dose. diabetics inject like 50iu's of insulin at a time so it really doesnt matter if they are off by one or two IU's, for us it is extremely crucial.