BRS recently switched their 160 to 2x gyres and had some interesting ideas on what flow patterns to use. I'd love to find a way to get their program to run on the stock controller instead of the apex modules but either way I think 2x is awesome.
I'm running two on my 150g and have 0 complaints other than the noise at times. A good cleaning and sometimes a knock and it goes away.
BRS160 APEX Tables for Alternating Gyres:
Left Gyre-
Fallback ON
tdata 00:00:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 00:45:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 01:30:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 02:15:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 03:00:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 03:45:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 04:30:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 05:15:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 06:00:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 06:45:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 07:30:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 08:15:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 09:00:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 09:45:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 10:30:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 11:15:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 12:00:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 12:45:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 13:30:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 14:15:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 15:00:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 15:45:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 16:30:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 17:15:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 18:00:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 18:45:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 19:30:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 20:15:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 21:00:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 21:45:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 22:30:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 23:15:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 23:59:58,0,0,0,0,0,0,0,0,0,0,0,0,0
Right Gyre:
Fallback ON
tdata 00:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 00:45:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 01:30:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 02:15:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 03:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 03:45:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 04:30:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 05:15:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 06:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 06:45:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 07:30:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 08:15:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 09:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 09:45:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 10:30:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 11:15:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 12:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 12:45:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 13:30:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 14:15:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 15:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 15:45:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 16:30:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 17:15:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 18:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 18:45:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 19:30:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 20:15:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 21:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 21:45:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 22:30:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 23:15:00,0,0,0,0,0,0,0,0,0,0,0,0,0
tdata 23:59:58,0,0,100,0,0,0,0,0,0,0,0,0,0