YMMV

I have been reading knitting instructions in vintage book and online downloads. I have noticed that most modern instructions include a disclaimer. I realize that it's not just an attempt to get you to buy the sponsor's yarn, but to prevent a lawsuit. My sister described such lawsuit inoculation as the corporate mindset. There are rules and you do not allow for individual variation.

I knit like I cook. I grab what is available and work it in as an individual, spontaneous expression. I ignore the rules.

So you are warned: YMMV, "your mileage may vary".