IPA critique/help

I'm planning on doing the IPA in Brewing Classic Styles this weekend with slightly different hops. Does the hop schedule seem right or should I switch some things around? Should I increase the bitterness (have some extra cluster and EKG's)?

10 lbs extra pale LME
0.5 lbs Munich LME
1 lb crystal 10
4 oz crystal 40
1 oz Magnum 13.5% 60 min
1 oz Centennial 9.9% 10 min
1 oz Chinook 11.8% 5 min
1 oz Amarillo 9.3% 0 min
2 oz Zythos dry hop
US-05 yeast

I would add some for the 60 minute boil...but I also love hops and bitter beer.

hopheaded said:

I would add some for the 60 minute boil...but I also love hops and bitter beer.

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Same here. I'll probably just throw in the 1/2 oz or so of cluster that I have left.