Hey Razrback, it's me again. You threw me a curve on the don't run 100:1 mixed at 50:1. My bottle of 100:1 has a chart for mixing at 100:1. 80:1 and 50:1. I have been mixing it at 50:1 and running it in my DA50 and Brison 3.2 just trying to split the difference between what the two manuf suggested. Now I have to figure out what to run in a 3W106 also.