Yeah, sorry I didn't want to make my response longer than needed to be. None of the Up or Neutral clients were Yellow Pages - most were referrals from the same

Yeah, sorry I didn't want to make my response longer than needed to be. None of the Up or Neutral clients were Yellow Pages - most were referrals from the same level (ie, Up / great clients had been referred mostly by other Up clients, and similarly with Neutrals, plus some general networking). Which does reinforce the 'you are who you hang with' conclusion I've drawn.