I think it's more a dressing room impact tpe of signing. Let's not forget we have young Tom out on loan and I think he would have a bigger impact than Robbie Fowler to be honest - at least on the pitch.
According to some, Robbie Fowler tweeted that he was offered £90 a week and £5000 pay as you play. He would only get this though if he played the FULL 90 mins which would be unlikely because of his fitness and Oyston would tell Ollie not to play him!