Thinkin about trying a Dubbel

Hey guys, I'm pretty new to all-grain and was thinking about attempting a dubbel. what do you think?

Recipe: Dubbel
Style: 18B-Belgian Strong Ale-Belgian Dubbel

Recipe Overview

Wort Volume Before Boil: 6.50 US gals
Wort Volume After Boil: 5.00 US gals
Volume Transferred: 5.00 US gals
Water Added: 0.00 US gals
Volume At Pitching: 5.00 US gals
Final Batch Volume: 5.02 US gals
Expected Pre-Boil Gravity: 1.046 SG
Expected OG: 1.067 SG
Expected FG: 1.011 SG
Expected ABV: 7.4 %
Expected ABW: 5.8 %
Expected IBU (using Tinseth): 16.9
Expected Color: 14.1 SRM
Apparent Attenuation: 82.6 %
Mash Efficiency: 66.0 %
Boil Duration: 60.0 mins
Fermentation Temperature: 70 degF

Fermentables
Belgian Pilsen Malt 11lb 0oz (83.8 %) In Mash/Steeped
Belgian Aromatic Malt 8.00 oz (3.8 %) In Mash/Steeped
Belgian Biscuit Malt 8.00 oz (3.8 %) In Mash/Steeped
Belgian Special B 2.00 oz (1.0 %) In Mash/Steeped
Sugar - Candi Sugar Amber 1lb 0oz (7.6 %) Start Of Boil

Hops
German Tettnang (4.5 % alpha) 1.00 oz Loose Pellet Hops used 60 Min From End

Other Ingredients

Yeast: White Labs WLP500-Trappist Ale

Mash Schedule
Mash Type: Full Mash
Schedule Name:Single Step Infusion (64C/147F 90mins)
Step: Rest at 147 degF for 90 mins

Recipe Notes

I did one similar to this between Christmas and New Years'. It turned out to be a pretty fair beer. My recipe:

10lbs Pilsener (Belgian) 2L
1 lbs Munich 10L
8 oz Belgian Aromatic 26L
8 oz Caramunich 56L
8 oz Pilsener (German - only because I had leftover from another batch) 2L
8 oz Special B 180L
12 oz Belgian Dark Candy (? ~250L ?)
2 oz Tettnang 4% @ 60 min

Single temp infusion mash, 150F, 90 minutes, batch sparged.

90 min boil
Wyeast 1762 Belgian Abbey yeast x2

OG into fermenter: 1.070
FG into bottles: 1.012
ABV 7.58%

The color turned out spot on. It is nice with a darker coppery tone and very pleasant in a snifter. I tried some commercial examples, and I felt mine was lacking somewhat in the aroma department. Even at 8oz, I thought that the Special B was unnoticeable in the finished beer from an aroma standpoint. Personally, I don't think 8oz was enough and would go little more next time, perhaps with some more Aromatic malt too. It is an excellent beer and is totally drinkable even at 7.5% +