Thoughts on a Arrogant Bastard PM Clone Recipe

Arrogant Bastard Partial Mash Clone

5 lbs LME add 15 minutes left in boil
6 lbs Pale 2 row
1.75 lbs Special B
0.5 lbs Crystal 120

White Labs WLP007 Dry English Ale

1.75 oz Chinook FWH 90 minutes
0.25 oz Chinook 45 minutes
1.0 oz Chinook 0 minutes

70% mash efficiency ( I don't really know what my efficiency is )
Mash at 150 for 60 minutes, batch sparge
90 minute boil
Expected OG 1.076
Expected OG 1.016
7.7% ABV
IBU's 89

What do you guys think?

There's a pretty close clone recipe put together already by the can you brew it team at the brewing network

I actually got the AG recipe from Zymurgy and then converted it to partial mash. When I plugged the Zymurgy recipe into beersmith it came out with an OG of 1.092 which is way too high so I wasn't sure how accuarate their recipe was.

I lowered the DME to bring the OG down to 1.076 with 70% efficiency and added the 45 minute hop addition. Zymurgy had the 1.75 oz FWH addition and the 1 oz at fameout. I added the .25 oz 45 minute addition. Not sure if hop additions need to be different from AG to PM.

Well I went ahead with this brew. Got 70% efficiency from my mash. Hit my OG right on the money at 1.076. Added a 2 liter starter, and it is bubbling away in the basement. We'll know how it goes in 6 weeks!