So since the PSB's are designed to beam the sound upwards, then I could probabaly get away with 18"-22" stands and not use any kind of tilt but also get the benefits of having the drivers closer to the floor.
I had a few more questions regarding metal vs mdf stands. My factory PSB stands are mdf and was wondering is my PSB's were designed to be used with this type of stand, or was it simply a cost thing that prevented them to be sold with metal stands. Also, if the height and filling are the same, what are the major differences between wood and metal stands?