Hey guys. Just wanted to share how I've been using Ableton with SDJ
I turned on send midi clock in the 62 driver panel.
In ableton midi preferences, I selected sync on the input side.
Select EXT in ableton beside the BPM display in Ableton.
Select Rane 62 as your sound card.
Select channels 5/6 as your output.
The sound should be coming out of your AUX channel on your mixer.
Unfortunately it's not fully synced because the display on the mixer doesn't have any decimal places. I assume it either rounds up or rounds down to the whole number.