Shaving some weight there since one of my partners really wants to trim down the weight to leave us as fresh as possible at the end of our first climb (we're not just doing Liberty Ridge). Though really to me it seems like the most tempting part of re-using the prussics in place of draws is just having that much less stuff to bring up and have as clutter. e.g. still on the fence about ditching the pickets (much bigger weight/bulk saver!) since I'd expect that they either won't be needed or a deadman can be improvised.
I couldn't see any reason why cord should not be used for alpine draws, except that I rarely see it used for such, so I was just wondering if anyone else might.
Dane - thanks for the beta/conditions update for the approach.
Buckaroo - thanks for the insights of webbing vs. cord.