Recipe Critique - Vienna Lager

First time brewing a lager. How's this look?

Recipe: Vienna Lager
Style: Vienna Lager
TYPE: All Grain


Recipe Specifications
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Batch Size: 5.50 gal
Boil Size: 8.06 gal
Estimated OG: 1.048 SG
Estimated Color: 10.5 SRM
Estimated IBU: 23.4 IBU
Brewhouse Efficiency: 76.0 %
Boil Time: 90 Minutes

Ingredients:
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Amount Item Type % or IBU
3 lbs 12 oz Pilsner (2 Row) Ger (2.0 SRM) Grain 38.7 %
3 lbs 12 oz Vienna Malt (3.5 SRM) Grain 38.7 %
1 lbs 14 oz Munich Malt - 20L (20.0 SRM) Grain 19.4 %
4.0 oz Melanoiden Malt (20.0 SRM) Grain 2.6 %
1.0 oz Carafa III (525.0 SRM) Grain 0.6 %
1.00 oz Hallertauer [4.00%] (60 min) Hops 14.6 IBU
1.00 oz Hallertauer [4.00%] (20 min) Hops 8.8 IBU
1 Pkgs German Lager (White Labs #WLP830) [StarteYeast-Lager


Mash Schedule: Single Infusion, Medium Body
Total Grain Weight: 9.69 lb
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Name Description Step Temp Step Time
Mash In Add 12.11 qt of water at 165.9 F 154.0 F 60 min
Mash Out Add 6.78 qt of water at 196.6 F 168.0 F 10 min

It looks good. I prefer a simpler grist bill and use 97% Vienna and 3% CaraHell.

Carafa just for color?

My favorite Vienna lager is 100% vienna malt (double decoction). I'd simplify quite a bit for the best flavor, and use all Vienna malt instead of pilsner and Munich malts in the base.

Thanks for the suggestions - I took them to heart and modified the grist to

1 lbs Pilsner (2 Row) Ger (2.0 SRM) Grain
6 lbs 8 oz Vienna Malt (3.5 SRM) Grain
2 lbs Munich Malt - 20L (20.0 SRM) Grain
4.0 oz Melanoiden Malt (20.0 SRM) Grain

Color may be a little light without the carafa III. The 90 minute boil should help darken it up.