I've got the I/O with the Green Sol-X and Blue Sensor mirror. The Blue Sensor is great for snowy days but my eyes are pretty light sensitive so if it's just cloudy, I find I need something darker. On bluebird days the Sol-X is great but in the shadows it can be a little hard to see. I'm going to order the Ignitor mirror which Smith says is a good all around lens.
I only ski in Utah but it looks like you may be on the east coast. I've seen a few east coast people on here say the blue sensor mirror is the one they use most skiing in the east.
Here's a thread I started where another member here was nice enough to post a photo of the view through the red sensor and blue sensor mirror.