Brent,
I just have a run of the mill 10 year old been relofted once Marmot Pinnacle 15* F Bag. I have been on B-P in conditions similar to what you experienced Friday night into Saturday many times.
There are no wind blocks per se just south of the summit where we usually settle down for the night but there is some manzanita. I use a ground cover and Big Agnes (barely insulated) Air Core mattress. As long as bag is snugged up around the shoulders it provides enough warmth for me wearing shirt and skivees...no socks.
Why BP? My question is why Baldy, other than its cult like reputation. It does not offer much for an overnight. B-P is the best when you go up Dawson Saddle. The plan is to reach Throop at sunset. By the time you reach Burnham, it is pitch dark, the stars are starting to show themselves and the lights of the city and desert are bright as you make your way to B-P. Even Cucamonga Peak is a better overnight destination. I'm not a big fan of Mt. Baldy...there are much more interesting trips in SoCal to "lesser" peaks.
