ki4got,
I'm sorry to hear your hatch didn't go so well, but glad to hear you're getting at least some Dorking eggs from the pullets. My 5 girls from the same hatch as yours were giving me 3-5 eggs a day through September, but as soon as the weather cooled off and the days got shorter a few weeks ago they slacked off big time (1 egg today, none yesterday, none on Saturday). I hear the Dorkings are better winter layers than most, but I'm not expecting much until the usual spring egg explosion at this point.
Hope the trio has settled in and are enjoying their new home!