Wayne Parham Messages: 18835 Registered: January 2001
Illuminati (33rd Degree)
You could certainly try Geddes original proposed multisub arrangement, which was "one in a corner, one along a side wall and the last one 2/3 the way up to the ceiling along another side wall."
For reference, the link below has information about the commonly proposed arrangements, Welti, Geddes and mine: