remoran

I just got a Rivendell Little Joe, and have some concerns about setting it up on my bike. I just put it on, but it hits the back of my legs as I pedal. I haven't fiddled around with the set up yet, but wanted to find out if this was to be expected with a saddle bag. My saddle (Champion Flyer) is pretty far back, could that be the problem?

It doesn't interfere with my pedaling, just rubs the back of my thigh. More of an annoyance than a real problem - so far.