For the OP, any consideration to using BrewTan B? I discovered it during my dabbling into low oxygen brewing and even though I don't do LoDO anymore, BrewTan B is a must for my brews. Combined with whirlfloc, it drops my beers super bright after chilling, which leads to clear beer into the fermenter. Then after fermentation a day or two cold crashing, the beer drops clear again and is usually crystal clear in keg after 1-2 pints.
First time I used BTB was with a Pilsner and after chilling, I took the cover off the kettle and did a double take, the wort was so clear it looked like it was gone and I could just see all the trub at the bottom. I do no-sparge brewing and have settled on 1 gram in the mash and 0.6 grams at 15 mins in boil. You do have to wait 5 minutes before adding whirlfloc or other fining agents. But in the 4-5 years using it, I have only had 2 beers that have not cleared, a stubborn Kolsch when I did not realize the yeast was a slow flocculator and a Trappist Single on tap now in which I used Wyeast 1214 which is also slow to floc. I think in the future, I will increase my BTB addition if I am using a low flocculating yeast.