Oops!

Just brewed an Oktoberfest but left out 2 lbs. of vienna. I know OG will be skewed, final ABV also. That's fine, lower alcohol, understand. What effect on taste/ body should i expect?? Broke my hydrometer, so i don't know OG, but have been hitting 70-75% efficiency.

4.00 lb Pilsner (Weyermann) (1.7 SRM) Grain 42.1 %
2.00 lb Munich (DURST MALZ) (17.0 SRM) Grain 21.1 %
2.00 lb Pale Ale Malt 2-Row (Briess) (3.5 SRM) Grain 21.1 %
0.75 lb Victory Malt (biscuit) (Briess) (28.0 SRM) Grain 7.9 %
0.50 lb Carapils (Briess) (1.5 SRM) Grain 5.3 %
0.25 lb Caramel/Crystal Malt -120L (120.0 SRM) Grain 2.6 %
1.0 oz Hallertauer Mittelfrueh [3.20%] (60 min) Hops 12.0 IBU
0.75 oz Styrian Goldings [5.00%] (15 min) Hops 7.0 IBU
0.25 oz Hallertauer [4.00%] (60 min) Hops 3.7 IBU
1.00 oz Spalt LITE [1.50%] (1 min) Hops 0.2 IBU
1 Pkgs Bavarian Lager (Wyeast Labs #2206) [Starter 125 ml] Yeast-Lager

Beer Profile Estimated Original Gravity: 1.049 SG (1.050-1.056 SG)
Estimated Final Gravity: 1.012 SG (1.012-1.016 SG)
Estimated Color: 11.6 SRM (7.0-14.0 SRM) Color [Color]
Bitterness: 22.9 IBU (20.0-28.0 IBU) Alpha Acid Units: 1.6 AAU
Estimated Alcohol by Volume: 4.8 % (4.8-5.7 %)
Actual Calories: 260 cal/pint

that's too bad. vienna is probably my favorite malt. it has a nice, subtle malty flavor similar to munich but not as heavy or sweet.

that recipe still looks tasty though.