I've always run 10%, but ended up with a bottle of 15% by mistake this time. I bought another gallon today and grabbed ten percent out of habit. I've never switched between %'s like this, how much correction in tuning will this engine(saito 1.00) require before flying(tuned with the 15%)?

Also would like input as I've heard varying responses, 10 or 15% in this motor?


I feel like a dummy asking things like this, I've been out for a long time and this is the first motor I've dealt with knowing what I was doing out of all the ones I've owned(mostly by myself at any rate....the guys out at BVRC are being a great help ).