Rectangular mini length of chain

Hello! I'm not an expert, but I remember that there were several posts regarding the length of the 17B mini chain being shorter than other seasons, as an example. There was a thread called "*TWISTED CHAIN ISSUE* on 17B Mini Flaps" where there were several comments that might be helpful. Hope that helps!
 
Thanks, My 3 Zees! That was helpful. There were other comments about the varied chain length in that thread. I expected the chain length of my new mini to be the same as my other one from a couple of years ago but it turned out to be a bit longer. I find the chain length of my old one to be perfect for me. I want to try shortening the chain of my new one. Any one also has the same issue? What do you do to shorten the chain? Thanks!!