I Try to commute 3-4 days a week. More often than not, it's 2 days due to off-site meetings and shuttling the gremlin to daycare. Each way is 9 miles. That said, I'm pretty physically consistent on most rides but these last two days I've felt super slow. It's a bit chilly in the morning but there are no real headwinds/tailwinds until the afternoon. I start off ok and then just flat-line and struggle to stay in a decent gear. As a result the ride seems extra dangerous (slow rider v. fast cars). Anyone else have similar experiences?