Some people are more efficient at metabolising proteins, some better at carbs. So your body type might require more protein to increase mass or more carb. Its not so much as what grams per lb of body weight but more the % of protein/ carbs/fats that form part of your overall calorie intake. Somewhere to start is around 40% protein, 45% carbs, 15% good fats. Then if you are not responding in mass you can move up the proteins & reduce the carbs. Dont forget that carbs are still the BBers main source of energy. Sure you need a lot of protein for repair work esp on cycle, but carbs are the bodies first source of energy & there should be enough of them in the daily diet to cater for heavy training sessions. Its all about finding what works for you.