Picked up the ingredients today and bounced some ideas off the guy at LHBS. Decided to replace the cascade at 60 minutes with centennial, seems to be along the lines of what you were suggesting with the magnum! So in total for the pale ale, I will have 4 ounces of hops, calculated out to 37.8 IBU. Brewing tonight, but hopefully this should work out for a P good first attempt at this style I think!
I'll post an update as I go along, thank you all for the input and suggestions, much appreciated.
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