It's going to be a while before it warms up enough for me to fully test out the sleep system and clothing that I intend to take on the Divide. However, I think that I have the apparel choices pretty well figured out, enough so that it seemed worthwhile to pack everything up in my seatbag and weigh it out. Here is where I am at as of right now:
The bag contains the following:
Western Mountaineering Highlite sleeping bag
Montbell down vest
Cutter eVent rain jacket
Ground Effect 3/4 length rain pants
Bellweather arm and leg warmers
Smartwool midweight socks
Ibex wool long sleeve baselayer
Neoprene toe covers
I still need to purchase some rain mittens and organize everything in a few small stuffsacks. Even after these additions I should be just barely above four pounds. There is still enough capacity in the bag that I could potentially pack in another component of my sleeping system (I want to minimize the amount of crap I have strapped to my handlebars as much as possible).
Although there are three months to second guess myself and change things, I suspect that this will be pretty close to what I have with me when I leave Banff. I'm eagerly awaiting the warmer weather and the chance to further test out and refine my gear.