Looking for the "x" type modules for the older z-cam system - late nineties I think. I picked up an old 1997 Firecat, brand new in the box. I replaced the strings/cables and now I realize that the 5x module I have that's supposed to be a 30" draw length is actually drawing at ~31". I'm looking for 4x and 3x. Just seeing if anyone has any laying around.