other than zz, i do not know of any "short" cuts heh heh
perhaps more friction steps will help
but i suspect i am making a "mindtrap" for you cos our manual say that we are not expected/force it to happen; it is to be attained naturally.
but i think you do not need to worry - from what you tell me you are on the most correct and natural path.
en... what i think is like this:
for beginners doing zz, some move, sway, twitch, or somethhing
as they become more comfortable they move less and less
once they stop, the movement become on the inside - the intent goes inside
if you can do this and "hu ying" (connect) with the outside imagination
i think you can feel zhen jing
if you train and go into more refinement then perhaps.... ming men
i myself was fortunate to do it once; i think the moon and planets alignment helped me along that morning.
i was not able to replicate it after