I do ... and that gearing is not that tough. Pretty good for the races around here. I run that or a 39X18, depending on how hilly the course is. Last race I misjudged and felt spun out with 39x18. Was really wishing for the 16. I know nothing about the SSWC course. And maybe I am reading wrong into your post but if I'm not, you do not appear to be the "ambassador of good will"