I was using a octane pro and had some issue with the brushes they kept getting wore out so I switched to whisker biscuit, I then chrono my arrow andnoticed a 8ft per second loss in speed and also my lazer veins keep getting tore up so after my hunt next week I am swithing to the vital gear kazaway rest no more octanes or whisker biscuits for me. but then again I shoot about 150 - 200 arrows about 4 times a week for practice so the octanes and whisker biscuits arent something that is beneficial for me