I like the LWZ-NUM command you've added, I might have to add that to my plugin. Currently mine just sends to all detected LEDWiz, but this would be cool if you want animations to only work on one LEDWiz.
BTW I will be able to test this for you probably next week some time if I get my groovy LEDWiz gear by then. Oh and thanks again

I think another command needs to be added called LWZ-WAIT:<duration>. So if you use one of the hardware effects it can pause the script for a while and do it's stuff. It would be good for attract modes where it rotates through a bunch of lwa scripts.
P.S I'm not sure if Randy will be releasing a new ocx any time soon, but the actual levels for the PBA command should actually go up to 49 not 48. 48 is still sending out a PWM and this can cause problems with some devices like relays and other similar devices (like the SlikStik color cycling joystick knobs)