<edit 1/18/2010> I'm mashing right now. I'll add a new post to the end of this to show what's going on</edit>
Ok, Here's what I've come up with. I got the estimated gravity readings from Mosher's Brewing Techniques article
80% eff gives me a 1.063 regular batch with this grain bill
Batch size 11 gallon (5.5+5.5, 50/50 split)
20lbs 2 Row
I was thinking about cutting back on the 60L/Munich as low as 1.5lbs each, but I'm not really sure
Mashing 90 minutes at 153
My 1st runnings should come out to 1.084
Second runnings should end up 1.042
<edited, thanks Jesse/dkershner>
I was going to mash with 8 to 9+ gallons of water and when I drained my first runnings I was going to stop at 6.5 gallons and start my Big's boil.
Then I would drain the remainder (if any) into my second pot and figure out how much more I need for my Small.
As for the hops, I was thinking about running my untested IIPA hop schedule since it shares the OG and a similar grain bill
1oz Columbus 14% at 60
1oz Nugget 13% at 60
1oz Centennial 8.5% at 15
1oz Nugget at 15
1oz Columbus at 15
1oz Centennial at 5
1oz Columbus at 5
1oz Amarillo DH
1oz Centenial DH
For the Small, I'll just use some basic APA hop bill, nothing crazy, actually probably pretty plain, maybe even something mostly late additions.
Both will probably use US05 since I don't feel like making 2 starters for my WLP001, but I could be convinced otherwise (due to the 1.084).
Is there anything in particular that I should know about trying out a partigyle recipe?
<edit> holy **** I suck. I wrote this up real fast when I had a few minutes. I meant that I meant to collect 6.5 gallons if I boil for 60 and 7 gallons if I boil for 90. So I will need to mash with more, oops. </edit>