I fitted the PDiK V2 Gen2 to my Ares M110K a few months back. Used it for 3 games and loving it.
yes the trigger cycle is:
1.fire bb, dwell and retract on held pull
2. load bb and remain closed bolt on release.
in my case I changed the trigger and springing within the Area gearbox. The GB had a lot of metal to remove as has strengthening fins everywhere. Also the clearance around the trigger valve was tricky in mine. However i was committed so made it happen.
Oh and the trigger feel is superbly weighted, crisp with great feel and audible clicks/felt release. Felt bit like the GBLS trigger (later one) for weight.
Hope this helps.