I know, the different standards can be frustrating.
As long as you like the look of the increase, that's what it boils down to. I often substitute an increase or decrease that I prefer, for one that is called for, but usually only when it's easier than what's called for, I'm not that picky.
In general "inc" just means to increase, it isn't a specific kind of increase, if it's not specified, you need to decide on your own. M1L and M1R are the ones I use most when it's not specified, or M1A or M1T, if I like the look of it in the pattern, since it's the easiest to do. KFB will create a bar like a purl nub, which can look decorative.
As long as you like it, that's all that matters! Definitely, don't rip out, unless you, for some reason, decide you prefer it a different way. Don't worry about right or wrong.
Hope that helps.