i just recently got a demon and i gotta say it the nicest shooting marker i have ever shot. over geo's, over DM's (by far) even over lux's. BUT that trigger! felt like i was shooting an OG impulse. i tried to adjust it and it was still stiff as anything. so i pulled everything apart and saw that it has a magnet and spring return. pulled the spring, reset the microswitch screw and viola! its sechs!
searched around and i couldnt find any places that had mentioned doing this but its worth trying if you dont like how stiff the trigger is from the factory