I usually default to Shimano but since my 9-speed format is starting to age a bit I find the selection of my favorite Shimano 9-speed cassettes starting to thin out a little. Yes, I can find new higher end Shimano 9-speed cassettes but when the cost of a SRAM 950 comes in under $30 it gets my attention. I have no reason to believe there is anything wrong with SRAM cassettes, I was just reaching out for opinions. I am thinking that since I use SRAM chains that there might be a slight compatibility advantage(?)