1. i agree with you about the coherent thing, but its not that i can't be...its that most of the time i choose not to be. say i write a very coherent, very persuasive piece on this forum, then what? where is the payoff? some jaggof comes in and says something showing they clearly didn't read it or understand it...therefore, i like to pick my audience
2. as for the less weight, its to a degree. of course lineman aren't going to be faster or quicker than a RB, so yes there is a point. however, i think its pretty obvious that i am talking about lean muscle mass.
3. thats correct, somebody's ability to carry more weight due to the sport they play has nothing to do with their capacity to add muscle mass. but if they want to succeed at that sport, then it does matter, and it matters how you train. not every athlete is born great...
...bottom line, most of the time i am too lazy to explain things fully or completely clearly. i apologize.