Hey Captain :thumbsup:

I'm sorry I can't be of much help on this.
I also use Aero Cloning.
It seems you are way more advanced than I on this topic.
You are cloning in 20gal. I use 2, 1/2gal containers.

I use the Aero Cloning because to me it is fool proof.
All I do is take cuttings, scrape 1 side at base, insert into cloner and wait about a week. Presto 99.732% success rate.
My cloners are at room Temp. and under a 15W flourescent 24/7.

I will be looking at this thread to see if anyone answers your questions.