The correct way to do is to take bits and pieces from different writeups and combine into what suits your skills and supplies best. If you are a newbee, better go for something that is easy, but has lower yields than the experimental high-yield state-of-the-art procedures. Also, everybody's ability to aquire chemicals vary quite a lot (for example, I am unable to aquire ephedrine/pseudoephedrine where I live, but on the other hand I can have 1kg of red Phosphorus and 1 kg of Iodine delivered to my door tomorrow. For most people it is the other way around), and therefore it is hard to piece together a writeup from start to finish that would suit everybody.