So I think I was one of the last persons to get the chocolate raspberry stout from AHS as I ordered it right at the end of April. Lucky me, I hear it's fantastick!

I'm getting ready to brew it soon, and so I'm wondering what yeast I should use. I basically have two options:
1) I selected the munton's premium gold dry yeast option when I ordered it, so I could use that. Or...
2) I have an Irish red ale in the primary right now using White Labs WLP004 Irish ale yeast. I was thinking maybe I could pitch on top of this yeast cake once I transfer the red ale to the secondary.
Which yeast would you use?