Watson-Mitchell........Contra investing?

This guy just seems to go from bad to worse!
Over the last two weeks he has napped Filtronic twice,once at 420p then again at 460p...suggesting that would go as high as 800p in the short term on the back of their figures.Those figures were out on Monday and the shares are now 345p to sell !
Is there any advfn bb'ers out there that in fact contra invest and in fact sell on the back of this guys' tips? If so,do you well over a period of time?