today i did 5iu humalin r 90 mins pre-workout and no liquid carbs,,,,just used my regular meal to supply the carbs which was 10oz chicken and 8oz yams....didnt go hypo during 70 mins of weights and another 30 mins cardio,,,glucose never got below 75,,,,looks like regular carbs can be used and you dont need all the liquid carbs (for guys like me who get fat easy).