I run 4iu-6iu novolog. I drink 40-50grams dextrose, whey, bcaa, creatine, glutamine during the workout and get amazing pumps. If you sweat and/or feel week half-way through, I always have glucose/dextrose solution 30grams on the side. If you ignore the first signs, you cant reverse the workout.... Meaning, its hard to continue the workout. Get to know how much sugar you have had that day and if your working back or legs, go a little higher, say 7 iu's and more carbs. Play with it. At those doses, ... as long as its not in the morning bc no sugar in system, its very safe. I just hate the excess sweat.