I don’t close transfer, but I do take care, and have never had any trouble with oxidation on my NEIPAs. That said, I’ve not used as many hops or oats as you have in your recipe so I suppose they may not really be NEIPAs!
My usual kegging process is to fully clean and sanitise the keg and other equipment. The lid is put on the keg and it’s filled with CO2 to 20 psi and left to the side to stand for a few minutes. When everything is ready to go I purge the keg, open it (you can’t see right to the bottom as it’s got CO2 in the bottom of it), add half a campden tablet then carefully syphon the beer from the FV into the keg. When done the keg is filled to 60 psi with CO2 and purged 8 times, then carbonated ready to serve.
I have an NEIPA on tap at the moment that was kegged 7 weeks ago. The hop aroma and flavour has fallen somewhat but there are no signs of oxidation.
This was the recipe I used:
HOME BREW RECIPE:
Title: Benfleet NEIPA
Brew Method: All Grain
Style Name: Specialty IPA: New England IPA
Boil Time: 45 min
Batch Size: 23 liters (fermentor volume)
Boil Size: 27.65 liters
Boil Gravity: 1.045
Efficiency: 75% (brew house)
STATS:
Original Gravity: 1.051
Final Gravity: 1.011
ABV (standard): 5.28%
IBU (tinseth): 15.07
SRM (morey): 3.33
Mash pH: 5.54
FERMENTABLES:
4 kg - Extra Pale Ale Malt (80%)
0.5 kg - Torrified Wheat (10%)
0.5 kg - Flaked Oats (10%)
HOPS:
30 g - Citra, Type: Pellet, AA: 12, Use: Boil for 10 min, IBU: 15.07
25 g - Citra, Type: Pellet, AA: 12, Use: Dry Hop (High Krausen) for 9 min
25 g - Mosaic, Type: Pellet, AA: 12.5, Use: Dry Hop (High Krausen) for 9 min
25 g - Amarillo, Type: Pellet, AA: 8.6, Use: Dry Hop (High Krausen) for 9 min
25 g - Simcoe, Type: Pellet, AA: 12.7, Use: Dry Hop (High Krausen) for 9 min
25 g - Cashmere, Type: Pellet, AA: 8.5, Use: Dry Hop (High Krausen) for 9 min
MASH GUIDELINES:
1) Strike, Temp: 68 C, Time: 75 min, Amount: 20.7 L
2) Sparge, Temp: 76 C, Time: 15 min, Amount: 10.95 L
Starting Mash Thickness: 2.8 L/kg
OTHER INGREDIENTS:
0.25 each - Campden Tablets, Time: 0 min, Type: Water Agt, Use: Mash
0.25 each - Campden Tablets, Time: 0 min, Type: Water Agt, Use: Sparge
4 ml - Lactic acid, Time: 0 min, Type: Water Agt, Use: Mash
2 ml - Lactic acid, Time: 0 min, Type: Water Agt, Use: Sparge
8 g - Calcium Chloride (dihydrate), Time: 0 min, Type: Water Agt, Use: Mash
6 g - Calcium Chloride (dihydrate), Time: 0 min, Type: Water Agt, Use: Sparge
0.5 tsp - Yeast Nutrient, Time: 5 min, Type: Other, Use: Boil
0.5 tsp - Irish Moss, Time: 10 min, Type: Fining, Use: Mash
YEAST:
Crossmyloof - Clipper
Starter: No
Form: Dry
Attenuation (avg): 80%
Flocculation: High
Optimum Temp: 17.78 - 22.78 C
Fermentation Temp 20 C
TARGET WATER PROFILE:
Profile Name: NEIPA
Ca2: 120
Mg2: 10
Na: 26
Cl: 250
SO4: 50
HCO3: 20