I am not an expert, so all I can do is chime in with my experience. I did about 5 extract batches w/ steeped grains, all recipes from my LHBS. All used LME, but a variety of yeasts (all dried - Nottingham, S-04, US-05, Munton's Gold and Windsor) and hops (Hallertau, Saaz, Cascade, Chinook...