PB2 Peanut Butter Powder Utilization

I'll be brewing a Peanut Butter Cup Stout on Sunday using PB2, given that it's powder-based and removes most of the oils based on other threads using PB2. I will definitely keep you updated as I want a chocolatey-peanuty aroma/taste thru and thru.

I saw this recipe posted earlier and modified it ever-so-slightly and turned it into a 10-gallon batch. I'll attempt to use 1lb PB2+chocolate near end of boil and then another 8oz in secondary, but still undecided. If I change the recipe during the brew I'll repost:

Peanut Butter Cup Stout
Style: Brown
Type: All Grain
Calories: 172.78
IBU's: 29.20
Boil Size: 12.19 Gals
Batch Size: 10.00 Gals
Color: 32.8 SRM
Boil Time: 60 minutes
Preboil OG: 1.046

Estimated
OG: 1.053
FG: 1.013
ABV: 5.19 %
Efficiency: 70.00 %

Grains
Amount Percentage Name Time Gravity
10.00 lbs 43.48 % Northwestern Pale Ale 60 mins 1.035
8.00 lbs 34.78 % Bairds Maris Otter 60 mins 1.035
2.00 lbs 8.70 % English Brown Malt 60 mins 1.032
1.00 lbs 4.35 % Bairds Chocolate Malt 60 mins 1.035
1.00 lbs 4.35 % Fawcett Pale Chocolate 60 mins 1.030
1.00 lbs 4.35 % Caramel/Crystal Malt 60L 60 mins 1.034

Hops
Amount IBU's Name Time AA %
2.50 ozs 20.23 Fuggles 60 mins 4.50
1.50 ozs 7.35 Fuggles 20 mins 4.50
1.00 ozs 1.61 Fuggles 5 mins 4.50

Yeasts
Amount Name Laboratory / ID
2000ml London Ale Wyeast Labs 1028

Additions
Amount Name Time Stage
1.00 lb Peanut Butter Powder 15 mins Boil
1.00 tsp Irish Moss 15 mins Boil