201T Saw Chain Comparison Human Published on Oct 9, 2016 Nabbed a couple different chains for my trim saw and compare the cutting speed of them. Of course the full chisels are faster, but they also dull faster as well. A trade off depending on your style. Chains are. Stihl 63PM Stihl 63PS3 Stihl 63PS Oregon 91VXL Both the PM & PS are discontinued, only available currently as PM3 & PS3, the low kickback versions.