If the weather is perfect - I will be at GRR.

They change the route slightly from year to year. I hope that they are back to the original route which is extremely challenging and very beautiful.

The route they used @two+ years ago was not one I would want to do again. The ride couldn't end fast enough. Challenging? Somewhat, but nothing terrible, and the route was ugly and the roads were pretty bad (my opinion). Of course 30 something degrees with a touch of sleet in the highest terrain just added to the misery.

Dress appropriately. You can always leave an article of clothing in a SAG vehicle at one of the rest stops if you don't want to carry it. I did a century yesterday that had a starting temperature in the mid/upper 30's. I was more than happy that I layered as much as I did. There are always a couple of fools that start off only wearing short sleeve jerseys. I bet that I could have sold them my $2 turtleneck for $200.

Remember - head (especially ears), fingers, and toes.