Over octane just makes your bottom end worse so why throw money away? Everyone is running what the manufacturer recommends. Anymore doesn't really make sense. Lets do the math real quick: It's Actually $2.30 more right now * 4 gallons per ride * 3 rides per week = $27.60 a week * a conservative 16 weeks of riding = $442. Is that gonna break any of us in this sport probably not but It is still money I would rather have in my pocket for other things than burning av just because I like to smell it burn. The biggest thing for me personally is ease. I have to drive 30 minutes each way to get av and its not on my way riding so this has to be on a non riding day. I can fill up my 3 cans cans and mix in a couple gallons per ride and my cans will last 7-10 rides. If I mix 50/50 my cans are only going to last 3 rides which is usually one week. Obviously I could get more cans which I need to do but now I am trying to find places to store all of them. I just plan to run what the manufacturer recommends. Honestly, I bought a "pump gas" kit. Knowing that it is low boost. If I wanted to spend all my money on fuel I would have bought a kit that runs 12 lbs.