my daughter just brought 1 of her 2 twins home from NICU. born @ 33 weeks, now 36 weeks. they have been mostly tube and bottle fed in NICU, she has been pumping. the nipples used in NICU flow fast and easily & now the little guy won't BF much. Is there a better kind of bottle/nipple to use to help him get used to BF? she plans to consult w/ a lactation consultant, but things crazy now w/ 1 still in NICU.