Young's Double Chocolate Stout Clone

What do you all think about this as a starting point for trying to clone Young’s DCS?

OG: 1.066
FG: 1.020
IBU 25

66.7% English Pale Ale malt
6.7% flaked oats
6.7% carabrown
3.3% chocolate
3.3% dark chocolate
3.3% blackprinz
3.3% extra special malt
6.7% lactose

1/2 lb cocao powered

EKG @ 60 min

WLP002

BYO has a clone recipe online. No idea how good it is.I think it was in their “50 Clone Recipes” edition as well.

https://byo.com/videos/item/59-5-british-ale-clone-recipes

The side of the bottle reads that the recipe includes oats.  The BYO recipe doesn’t have oats.

Would you handle the cacao additions?  In the mash?  Whirlpool?  Combination?

In the fermentor.

I’ve used chocolate once. I added it at flameout. It clumped and stuck to the bottom. I recommend pulling a half gallon of wort and mixing it before adding.