What do you mean please JR?
I also run a Octagon 20 Advance with autoturn cradle, with auto pump, i don't get as good results as i do in the mini, although i need to experiment more with the humidity, that may be the key?
Paid, you can probably get more chicks under them also. But if something works for you, then stick with it, i think Brinsea have made alterations to the newer ones, Brinsea are a fantastic company for listening to people and getting things sorted