Hey I ran it this saturday.....while it snowed.
A couple of notes.
1. I only hit 1 sand bar on the flats.
2. Portaging the flats this time of year isn't recommended for the plane an simple fact it's hunting season. Unless you like bullets flying over your head. The thought of cutting across never crossed my mind, especially after seeing a guy at the put in with a shot gun.
3. It was well worth it, no matter how low or cold.
4. The railroad has signs up now, saying to portage Gore on river left or else.