Very cool - glad you liked how it turned out. Well, just so you know I have a clone recipe that I was considering trying from BYO magazine (looks similar but some subtle but possibly key differences). I will post the recipe below. Sounds like the brew you did is worth trying, but I may run with this recipe first if I can get my brother to buy haha!
Looking forward to your side by side when you get to it. Enjoy the keg! I rocked a porter keg this holiday real quick, so I hear ya.
I am an extract guy for now, but they have the partial mash and AG version too.
1lb 5oz. pale malt
11 oz carmel 60L
5lbs Light DME (early)
2lbs 6oz light LME (late addition - final 15 minutes)
1.2 oz of 14% 17AAu Magnum Hops (60)
1 oz Magnum (5)
1 oz crystal hops (dry hop)
.67 oz (19 grams) magnum hops (dry hop)
.67 oz (19 grams) crystal hops (dry hop)
.67 oz (19 grams) Citra hops (dry hop)
yeast recc is WLP001 or Wyeast 1056 or fermentis US-o5
Says to get the hops right you need to boil 4 gallons of wort. 3qts of water at 152F for 45 mins (grain steep) and add water to make 4 gallons. Boil is for 90 minutes and add water if water volume drops below 3.5 gals. Dry hop 10 days to 2 weeks.
I probably won't start this one for a bit, I have two fermenting and one on deck, plan to start an arrogant bastard clone tonight. But when I do get to this in the next few weeks I will post back. When I do I plan to do the recipe exactly as above (4 gallons), not a full boil.