Fibaro Dimmer 2 association groups

Can I check in and see if you kept using associations here? I do have a webcore piston that does some light mirroring but it seems inefficient given the native association functionality If I could get it working right..

I seem to be able to set the associations okay using the tweaker temporary driver (my child device is listed in Hubitat as "17" so I'm entering that as HEX "11" into the tweaker) but when I swap back to the main driver (Using the top one here [RELEASE] Fibaro Dimmer 2 (FGS-212) Driver as I want settings like the "turn on level" and "timer" which seem to work okay) I don't get any control of the child device.

Wondering if based on your experiences I should persue it or go further down the webcore route...

thanks