Imperial Red recipe--critiques please!!!

I'm trying to upgrade Mojave Red ale to Imperial status for SWMBO. I'd really appreciate any input on the recipe below... planning to brew on Friday.

Thanks in advance!

Mojave Imperial Red
Style: American IPA
Type: All Grain
Efficiency: 70 %
IBU's: 74.93
Color: 17.2 SRM
Boil Time: 60 minutes
Boil Size: 6.50 Gal
Batch Size: 5.00 Gal

Brew Date:-11/25/2011
OG:1.084
FG:1.021
ABV:8.25 %


Grains & Adjuncts
AmountPercentageNameTimeGravity
9.00 lbs 51.34 %Briess 2-Row Pale Ale Malt60 mins1.037
6.00 lbs 34.22 %Briess Munich 10L60 mins1.035
1.00 lbs 5.70 %Caramel/Crystal Malt - 40L60 mins1.034
0.50 ozs 0.18 %Simpsons Black Malt60 mins1.025
0.50 lbs 2.85 %Briess Caramel 90L60 mins1.033
1.00 lbs 5.70 %Corn Sugar (Dextrose)60 mins1.046

Hops
Amount IBU's Name Time AA %
0.50 ozs 11.14 Amarillo FWH 8.50
1.00 ozs 14.42 Cascade FWH 5.50
1.00 ozs 20.65 Simcoe 20 mins 13.00
0.75 ozs 5.10 Simcoe 5 mins 13.00
0.75 ozs 6.55 Cascade 20 mins 5.50
0.75 ozs 2.16 Cascade 5 mins 5.50
0.75 ozs 10.13 Amarillo 20 mins 8.50
0.50 ozs 2.22 Amarillo 5 mins 8.50

Yeasts
AmountNameLaboratory / ID
US-05 slurry (amt calc by Mr. Malty)

Medium Body Infusion In60 min @ 154.0°F

Add 20.66 qt ( 1.25 qt/lb ) water @ 166.0°F

No love? What I'm most interested in is two aspects--never used Munich, so not sure about so much, and never done Imp Red so should IBUs go higher?

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