I mash for 90 minutes and drain very slow. I also don't get the best efficiency so I just always add more base malt to recipes to compensate and I keep DME on hand if my preboil reading is way too low.
Just did and imperial black IPA(1.078-1.012) with hop additions:
90 min boil
FWH 1.5 oz. Chinook 11%
60 min. 1.5 oz. Chinook
5 min. 0.5 oz. Chinook, 1 oz. Cascade 4.8%
0 min. 0.5 oz. Chinook, 1 oz. Cascade
Dry 1oz. Cascade, 1 oz. Kent Goldings
With the amount of Chinook the bitterness does seem...
The recipe from CYBI for Black Butte Porter is really good. I recently used the recipe with San Fran Lager yeast and took third for porters in a local comp. I entered it as a baltic porter. I have made it with ale yeast also and it's great.
If you make a starter at least 24 hours prior to pitching isn't most of the reproduction done and that's why fermentation begins so much faster. I make starters and drain into my fermenter just by opening up the spigot on my kettle letting it splash into fermenter.