What saw takes a 54 drive link chain? I've got a Stihl 021 that I found a bunch of old, but new condition, chains for. All but one are 55 drive links, for a 16" bar. These are Sabre chains and they cut pretty good, just have the one oddball that will fit, but I'm wary about putting a 54 link chain on a Picco bar designed for 55 links. Any answers? Did the chain maker goof and not count enough links before he cut? Thanks.