The Lady Bruins are peaking right now, and the timing couldn’t be better. The Bear River girls volleyball team hasn’t dropped a set in seven matches, a span of 23 days, and have demolished their first two opponents in the Sac-Joaquin Section Division IV playoffs in short order. After blowing out Marysville in the first round and trouncing rival Colfax in the second round, the Lady Bruins (28-12 overall, 9-1 Pioneer Valley League) will now take on No. 3 seed Sonora in the semifinals. “We haven’t been able to find out a ton about them,” Bear River head coach Matt …