Well put, valeriomarcello. Well put. "What do you want to use it for?" That is the question.
"Professional level recipes" is something of an oxymoron. When you reach a level of professional competence, you understand how ingredients go together, what your particular ingredients are like, what substitutions you can make, how to apply techniques to reach desired ends with a given set of equipment, etc. To a very large extent, that's what professional competence is. Consequently, you tend to work off recipes rather than follow them to the letter.
I find the most interesting and challenging part of writing recipes is perfecting them and writing them so they can be followed by someone who doesn't have a great deal of skill, AND provide inspiration for improvisation for someone who does.
BDL