American Barley Wine Recipe Critique

Recipe Specifications
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Batch Size: 5.25 gal
Boil Size: 8.35 gal
Estimated OG: 1.108 SG
Estimated Color: 18.5 SRM
Estimated IBU: 86.4 IBU
Brewhouse Efficiency: 79.00 %
Boil Time: 90 Minutes

Ingredients:
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Amount Item Type % or IBU
3.50 lb Light Dry Extract (8.0 SRM) Dry Extract 19.44 %
9.00 lb Pale Malt (2 Row) US (2.0 SRM) Grain 50.00 %
3.00 lb Munich Malt (9.0 SRM) Grain 16.67 %
1.00 lb Caramel/Crystal Malt - 40L (40.0 SRM) Grain 5.56 %
1.00 lb Caramel/Crystal Malt - 80L (80.0 SRM) Grain 5.56 %
0.50 lb Victory Malt (25.0 SRM) Grain 2.78 %
1.00 oz Chinook [13.00 %] (Dry Hop 10 days) Hops -
1.00 oz Centennial [10.00 %] (Dry Hop 10 days) Hops -
2.00 oz Chinook [13.00 %] (60 min) Hops 72.7 IBU
1.00 oz Cascade [5.50 %] (15 min) Hops 7.6 IBU
1.00 oz Cascade [5.50 %] (5 min) Hops 3.1 IBU
1.00 oz Williamette [5.50 %] (5 min) Hops 3.1 IBU
3 Pkgs California Ale (White Labs #WLP001) Yeast-Ale


Mash Schedule: My Mash
Total Grain Weight: 14.50 lb
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My Mash
Step Time Name Description Step Temp
60 min Step Add 20.30 qt of water at 162.4 F 152.0 F

Making a 2000 mL starter with 200 mL of thick washed yeast slurry so I guessed that's about 3 pkgs.

I'm wondering if the 15 minute hop addition is worthwhile or it will just get lost in the rest of this beer. I definitely want hops to shine through, but suttle. Any other help on improving this beer would be good. Obviously I'm going for a malty/biscuity grain profile and want it balanced but not overpowered by hops. Balance is what I'm ultimately looking for. I'll ferment for about 4 weeks, then rack to secondary and let age for 8, dry hopping the last 2 weeks of the 8 week period, then bottle Thanks

What is your IBU/SG ratio? That is what I use to determine if my beer will come out under-hopped/balanced/hoppy. Also, barleywine is typically aged and a ton of hop character, even bitterness, will fade out with time. I usually over hop mine since it gets bulk aged and then bottle aged for quite some time.

It does look like a solid recipe to me though. The williamete might get lost with all the cascade in there but other than that I think it'll be tasty.

Ibu to OG ratio is about .85 which to me should be about right for the style. That being said, you point about the williamette may be right. Thanks.