Was last in there from 8/11-16. Rte finding is pretty straightforward getting around in BB. The ridge climbing is totally obvious. Depending on a lot of factors, like weather, endurance, fitness, and climbing style, I think a good time to shoot for on a round trip W Ridge day, for your first time being in there, is 10-12 hrs camp to camp in BB. You may go much faster if you simul or solo some parts of the ridge. I have done it in 8 hrs guiding the whole thing, so there is time to be made in places...
Have fun!