How does this hop schedule look?

I'm going to brew a pale ale this weekend. Since I just got my order in from Freshops, I decided to get a little crazy with my hop schedule. What do you think of it?

0.50 oz Centennial [10.00 %] (60 min) Hops 16.6 IBU
0.50 oz Cascade [5.50 %] (20 min) Hops 5.5 IBU
0.50 oz Chinook [11.00 %] (20 min) Hops 11.1 IBU
0.25 oz Amarillo Gold [8.50 %] (20 min) Hops 4.3 IBU
0.25 oz Amarillo Gold [8.50 %] (5 min) Hops 1.4 IBU
0.25 oz Centennial [10.00 %] (5 min) Hops 1.7 IBU
0.25 oz Chinook [11.00 %] (5 min) Hops 1.8 IBU

I'm still playing around with it, but as of right now, I think this is what I am going to go with.