One thing to note is that when Revolution builds their rods, they add a couple wraps of carbon on the very ends to reinforce the connection point. This is usually referred to as "scrim" if I am saying it correctly. This scrim on the end of the Rev rod gives it a bunch of extra support where the two rods come together. Because of this, I wouldn't recommend cutting the Rev rods, or if you do, use the cut end on the outside of the kite and keep the scrim end on the inside with the ferule. Draw a mark on one end to help remember which end is which. That way you won't be weakening the rod at all.
As mentioned above, there are different amounts of wraps on each of the rods. 2 wrap, 3 wrap & 4 wrap. 2's being the lightest and most delicate, 4's being the heaviest and strongest. Along with that, you have two different sizes. The small size which is usually referred to as a standard rod and measures at 1/4" diameter. And the SLE rod (stands for Super Leading Edge) which is a larger diameter rod measuring in at 7/16" (also referred to as the 1/2" rod). Both the standard rods and the SLE rods come in different wraps and both use the same labeling system. The SLE rod comes in 3 wrap and 4 wrap. I have never seen an SLE rod in the 2 wrap configuration.
Older labeling on the rods use to be different but are the same exact rods as the newer rods other than the sticker has changed. Older rods were labeled with a gold sticker, newer rods are labeled with a silver sticker. This is the same for standard rods as SLE rods. The labeling is as follows:
2 wrap rods - New label has two feathers with a big number 2 - old label has the words "Professional Use Only" on it.
3 wrap rods - New label has 3 feathers with a big number 3 - Old label has the words "Ultra Light" on it. This is the most common rod used in most revolutions and also what is in your EXP even though your EXP rods don't have a label on them.
4 wrap rods - New label has 4 feathers with a big number 4 - Old label has the words "Revolution Equipped".
Race rods only come with the new silver label on it and say "RACE" with flames.
Regardless if you have the newer rods or the older rods, they are all the exact same. Only the label has changed.
You can put any one of the above rod configurations or even a mixed combination of rods in the EXP, 1.5 SLE, B-Series and B-Series Pro kites. They are all completely interchangeable - even the SLE rods (but don't tell the team fliers on here that you put an SLE rod in a B-Series Pro or it will get them flustered beyond reason) LOL
Anyways, hope that helps explain the Rod confusion a bit more for you. Keep the questions coming, we're all here to help.