Quick opinion on which transmission service—??

[O5Q45]

Hey guys, about 30k ago I had a drain and fill performed and had one quart of the new “Platinum” Lubegaurd.. the transmission is still 100% flawless in gear engagement times as well as shifts and torque converter locking. The stupid engine brake with 4th gear I despise.. anyways; the service prior to that was a transmission service at Nalley Infiniti in Atlanta at 45,000 miles and not again until 90,000 now I have 116,000. When I had it done at 90k Infiniti said fluid looked great and saw nothing wrong with the vehicle bumper to bumper... so, what service should I have? Nissans drain and fill; or ; BG flush and fill?

[EdBwoy]

Nissan drain and fill is how I'd do it. A flush seems unnecessary at this point