RE: .28 in a funfactor? oh dear....
It really isn't the rain that is the problem it is the 35-38 degrees F and 25mph winds that is the problem. I also work outside and on the weekends I am done being outside.
A 15/43 combo should soften out the bottom end and give you a good top speed. If it does take to much bottom end away try a 15/46 combo.
rolland