Hey Doktor
I was using the miner with adrenalin 17.x.1 version which month i don't remember exactly and ADL wasn't working. I upgraded the driver with adrenalin 18.5.1 and ADL problem is solved. Maybe you can add this as known issues. Keep up with good work. Regards.
i think you can use it even on 17.x drivers since i added support for Overdrive5. But i did not test this lol

I did not tried that one too

I am using OverdriveNtool btw.
that's ok , its a great tool to set your clocks and undervolt.
Version of overdrive can be set in gpu_conf for every card separately :
"adl_type" :
1-OverdriveN
2-Overdrive5
"gpu_conf" :
[
{ "id" : 0, "intensity" : 0, "worksize" : 8, "threads" : 2, "adl_type" : 1},
{ "id" : 1, "intensity" : 0, "worksize" : 8, "threads" : 2, "adl_type" : 2}
]