[Cloud9Fitness]

To answer your amounts question...
Titrating up may give your a chance to absorb more over time. The proportion of carbohydrate you need is really based on the amount that you need during the day, or how many you can burn to maintain your goal weights. Anabolic studies have looked at a max protein/carb ratio of 2/3.
You experience is the best guide above that.

Protein absorption is interesting. The most that has a measurable anabolic effect is 20 grams per sitting. This was determined in male bodybuilders with at least 5 years lifting experience. You can absorb more, but it did not show an anabolic effect in the muscles when they sampled the muscles (muscle biopsies). They did not see how long before the next protein meal, but my inference from other studies is a 20 gram protein load every 3-4 hours maxes most individuals out.