I stuck my sealed subs about the same distance from listening position as the open baffle, but behind me. They are pointing towards the side walls positioned near the center from side walls. I did that because it looked too cluttered at the side walls and they sit right behind my pool table. They are set at about 32hz and 180 out of phase, LR48 crossover.
I didn’t tinker with the settings, but so far like what it did to the sound.