Can you show me a picture of the module you have? If its the Chi brick I am thinking of you are going to have issues with analog modulating the green. I have performed exactly what you are trying to do and ended up unsatisfied because the green DPSS was not suitable for modulation.
I am using the drivers you have listed in one of my projectors and I like them alot. When I tried to upgrade the drivers on my Chi brick I used Flexmods and it worked great for the Red and Blue. The way I determined needed current was by hooking and Amp meter in series with the diode and used the driver that came with the diodes establish the needed current. Then I set the Flexmods to the same current output using the calibration instructions included with the drivers. But like I said the green did not modulate as expected. It was pretty much still TTL. This can still be a good step towards a DTR bundle in the future though because you will already have the drivers needed for the DTR bundle.
Watching Lasers Since 1981