Downside to an IB this time of year is 7 hours of riding in the dark
Not really. I left this morning in the dark of course but the sun was peeking out a short while before I got to Windsor, so about 3.5 hours in the dark there, and about 1ish hours in full dark on the way back...so 1640km on October 21'st with under 5 hours riding in the dark.