I did a set on a client with bitten, fan shaped nails this morning too (I'm newly qualified & don't feel confident enough to sculpt yet). I just told her that they may look a bit unbalanced until her nails have grown out a bit and that they might not look perfect, but she was sure she wanted them with white tips so that's what I did :| They looked ok, but not what I would have done if they were my nails! lol