What are you running for gears on your SS ? Try the short cuts, the horn pond section is really nice, you'll save some distance as well. Bananas are great go food for me. In July( tour-de-france individual tt day) I rode the 17.5 miles in one hour. All time max speed. I give some of the credit to the 3 green lights that i had. Most days it is between 70 and 80 minutes.