To answer the questions:
First, the recipe:
Brew Method: All Grain
Style Name: American IPA
Boil Time: 60 min
Batch Size: 5.5 gallons (fermentor volume)
Boil Size: 6.5 gallons
Boil Gravity: 1.058
Efficiency: 70% (brew house)
STATS:
Original Gravity: 1.068
Final Gravity: 1.018
ABV (standard): 6.65%
IBU (tinseth): 55.5
SRM (morey): 6.65
FERMENTABLES:
10 lb - American - Pale 2-Row (67.8%)
1 lb - Flaked Oats (6.8%)
0.75 lb - American - Carapils (Dextrine Malt) (5.1%)
0.5 lb - American - Caramel / Crystal 40L (3.4%)
0.5 lb - Flaked Wheat (3.4%)
2 lb - United Kingdom - Golden Promise (13.6%)
HOPS:
0.5 oz - Columbus, Type: Pellet, AA: 15, Use: First Wort, IBU: 14.65
2 oz - Columbus, Type: Pellet, AA: 15, Use: Whirlpool for 20 min at 170 °F, IBU: 40.85
2 oz - Galaxy, Type: Pellet, AA: 14.25, Use: Dry Hop for 3 days
1 oz - Columbus, Type: Pellet, AA: 15, Use: Dry Hop for 3 days
2 oz - Galaxy, Type: Pellet, AA: 14.25, Use: Dry Hop for 6 days
MASH GUIDELINES:
1) Sparge, Temp: 152 F, Time: 60 min, Batch sparge
Starting Mash Thickness: 1.25 qt/lb
YEAST:
Wyeast - London Ale III 1318
Starter: Yes
Form: Liquid
Attenuation (avg): 73%
Flocculation: High
Optimum Temp: 64 - 74 F
Fermentation Temp: 64 F
Pitch Rate: 0.5 (M cells / ml / deg P)
NOTE THAT THE OG WAS MUCH LOWER THAN THE RECIPE DUE TO MY BRAIN FART ON STRIKE AND SPARGE QUANTITIES. OG was 1.060
I started with RO water and a friend who's an experience all grain brewer did the water additions. I don't know exactly what he added, but he said it should give me a nice mouthfeel. He added sodium and calcium...but don't know the exact PPM....I texted him to ask.
I am super confident in the mash temp. We mashed in a cooler and it hit spot on and held to within a degree.
Maybe I misunderstood Galaxy...I expected it to be more juicy with a slight dankness from the columbus.
My plan is to follow the same recipe with different hops for my next batch.
Keep in mind...the beer is very good, just different from what I expected. I'll have no problem finishing off this keg and I may brew this exact recipe again. I'd be going to the tap for another now but work tomorrow would suffer.