I was working for another much bigger company on this one so think it best I don't divulge too much info... Suffice to say, they were all OPS, no diodes or DPSS. Perfectly aligned and each one had a QM2000 on board....
I think they were 2 x 2.5 watt 639, 5 watt 577, 5 watt 532 and 5 watt 460... Something like that, very well balanced once you back the green off a touch...