One of my Bianchi's has a Reynolds 631 frame and 105 components. Very comfy ride. Trade-offs: it's a touch heavier than I'd like and the BB area flexes a bit when I'm out of the saddle (I'm over 200#).
__________________
"The older you do get, the more rules they're gonna try to get you to follow. You just gotta keep livin', man, L-I-V-I-N." - Wooderson
'14 carbon Synapse - '12 CAAD 10 5 - '99 Gary Fisher Big Sur