Yes...I mean, no...I...er...blue!
This may be tangential, but...
I've always thought that it is important--when playing a game--to first try my best to fully understand how the designer meant it to be played. Only after I've done that do I feel comfortable moulding it to my will.
(&, unfortunately, the actual text of a game may not be a very accurate representation of the designer's intentions. So much the better if I can find other resources to give me insight into those intentions.)
My groups have often been a bit annoyed at me for wanting to run any new system as much by-the-book as possible the first few times.
This point has been driven home even more to me in the last few years as I have revisited games that I had thought I thoroughly understood, but which--after re-examining with a fresh eye--discovered new insights.