Sorry Paul - it was much to late to me yesterday evening. (stronge work the whole day).
So I was telling total nonsens to you - don't be afraid to say so.
3'min 15" is C-41but we regard E6 in concerns to developer times.
6'min15" is correct to E6 , pls. check you
instruction from Arista again.
Recommandations differed a litle from kit
to kit I am personally not in use with Arista kit.
6'min"30 is also recommanded it depends to the total amound of developed films - I could imagine.
1. - 2. roll = 6'min15" / 3. - 4. roll = 6'min30" for example.
But this should stated in your Arista kit
dAta shieds - just check this please.
100 degree F is also correct (I am working with Celsius)
Hmmm. ....cyan cast?
I remember cyan casts with old Kodak
Ektachromes E100s.
That was from storage.
May be some chemicals splashes ?
Is your kid new - have you a workflow of
most painstackingly care to your equipment and chemicals?
May be some of APUG experienced chemical experts could help ?
I am personally more focused on
corrections to color casts wich are from
expired films.
And ( within limits ) there are posibilitys to correct color changes due to chemical
upset of formulas.
It is more experimental.
You - you should first have to find out what has gone wrong with your arista kit.
And sorry again - 3'min.15"


....
It seams so as I was drunk yesterday...
(We got a company anniversery celebration after work)
with best hope to your problem