As you can tell, I am rather long-winded so I did not want to focus on one subject or you would all either go insane or ignore me. If one trains very hard, the first 30 90 minutes is called a "Glyceminc window." That means simple carbs or any carbs high on the glycemic index are utilized more easily then other carbs for energy.
Also, if one is a well trained person, thier metabolism is higher so they can handle the spike with ease. You CAN mix potatoes with legumes or other foods with a low glycemic index rating to lower the spike. I suggest 50-100(Depending on the size of the athlete or trainee.) grams of ANY carbs immediately after training and 25-50 grams of protein(Again depending on body weight.) with a small amount of fat.
I have more suggestions. The above was more to a strength athlete such as a bodybuilder or fighter. Endurance athletes actually consume MORE carbs and they are the skinniest of the bunch. Pathetically skinny if you ask me but I still respect them.
What I have stated is FACT, if everyone wants to do something different, thats fine. Body Builders lower thier carbs before contest and weight lifters do not. What I am trying to say is this is NOT a debate as to who is correct. The answer is already known and I cant help it if people will not listen. Notice how I said, form follows function and different athletes require different diets.