Can somebody explain to me or refer me to.

I'd love to learn first off how can you use or read the middle Pivots.

I also read somewhere that it isn't suggessted to exchange between particular pivots like r1 and r2 or something along that line. I tried searching in the forums but I can not appear to get the post. I hunted in the face but I can not find that post. I didn't mark it although it was really informative.

So any and all information will be greatly appriciated.

You guys on this borad are extremely beneficial.

Thanks

Alden