Deidrich roaster

[tsurfdog]

Hey all,
I've been roasting my cocao beans in my behmor at home (and having lots of fun doing it), but I am a coffee roaster by trade and have a Diedrich IR-5 at work. I am thinking of trying a roast in it.
Here is what I seemed to have gleaned so far:
I can roast 10 pounds of coffee beans which means up to 25 pounds of cocao.
Lower and slower profile - 18 minutes, ending at about 265.

What I need to find out to limit wasting by trial and error:
Drop temp for a small batch, like 5 pounds. I want to start with a small amount. 
What's the bottom temp I'm looking for? Time to bottom temp?
I guess I'm looking for a general profile for roasting cocoa beans in a Diedrich. Any tips?
Thanks,
Tom

[tsurfdog]

I think I found my own answer on the Ask the Alchemist page.
chocolatealchemy.com/2015/01/29/ask-the-alchemist-102/
That's what I was looking for. A general idea and I can go from there. Thanks.