thanks for your help i have just baught tim rudmans book it hasnt arrived yet ,cant wait one other thing is constant agitation nessesery or should i just leave it ,its along time to keep moving but i wasnt sure if developer would slow down withought agitation,ps im glad you like my prints i am just doing some more now .i have a zonemaster 2 and have been just dialing in filters like i would with normal black and white and just thaught is there any need, sorry for ramlbing ive had a few glasses of wine