Russian Imperial Stout

Gearing up for a snow day/brew day. I have the Better Brew kit, and after reading 10 steps for better extract brewing, I've made modifications. I'm thinking of adding 1/2lb of Brittish 2 row to the steep/mini-mash for a total of 2.5 lbs of grain. It raised the OG from 1.071 to 1.074 in Brew Pal- worth it? Here's what I have. I will plan on 3.3 LME late addition. I could also spike the wort with some Simcoe's @ 60 minutes. Any suggestions?

BB Russian Imperial Stout
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Batch size 5 gallons
Boil size 6.1 gallons
Boil time 60 minutes
Grain weight 11.1 pounds
Efficiency 75%
Original gravity 1.074
Final gravity 1.019
Alcohol (by volume) 7.3%
Bitterness (IBU) 40
Color (SRM) 49.8°L
Yeast
13 dry grams
Dry
Fermentis Safale S-04
Grains/Extracts/Sugars
11.1 pounds
Liquid Malt - Dark
34ppg, 35°L 6.6 pounds
59.5%
Dry Malt - Dark
43ppg, 35°L 2 pounds
18.0%
Crystal 60L
34ppg, 60°L 0.5 pounds
4.5%
Black Patent
27ppg, 500°L 0.5 pounds
4.5%
2 Row Base
37ppg, 1.5°L 0.5 pounds
4.5%
Barley (Roasted)
28ppg, 500°L 0.5 pounds
4.5%
Dextrin
33ppg, 1.5°L 0.5 pounds
4.5%
Hops
1.5 ounces
Columbus hops
14.2%, Pellet 1
ounce
Palisades hops
6.7%, Pellet 0.5 ounces
Steep
1.25 Gallons/ 60 minutes
Strike. 158 Degrees
Sparge. 2 Quarts @ 150 Degrees
Boil
60 minutes, 2.75 gallons
Columbus hops
14.2%, Pellet 1 ounce
40 minutes (+20)
Palisades hops
6.7%, Pellet 0.5 ounces
20 minutes (+40)
Wort chiller 15 minutes (+45)

Ferment
14 days @ 59-75°F

Nobody loves me!

so what ingredients actually came with the kit? If you want to make it an actual mini-mash, I'd drop a can of extract and add a few lbs of the 2-row instead. Otherwise, IMO the 0.5lb of 2-row is kinda pointless since the rest of the grains don't require a mash.

edit: I ask what it came with, because if you're buying extract, I recommend only getting light extract that way you have more control over what you're doing. plus the darker the extract the less fermentables.

The kit is everything listed exept for the 2 row base malt. My reasoning is to increase the grain volume to 2.5 lbs, get a more robust wort, and hopefully ferment a little further.

at 40 IBUs your pretty low for a Russian Imperial Stout. I would shoot for somewhere around 70 at least

Yeah, the kit says 61-64 but Brew Pal says 40. Thats why I was thinking of spiking it with a 60 minute addition.