when properly fitted, you should only be ably to pull the trigger a very little bit before the engaged safety blocks further trigger rotation.
remember, the take-up adjustment determines the attitude of the trigger in the receiver. get the trigger adjusted to the approximate settings you are comfortable with.
i recommend setting it up, initially, as it came shipped from redstararms...or very close to those 2-stage settings. dial off the amout of take up, using the set screw, as you are comfortable with.
double-check the disconnector engagement on the hammer and then the trigger engagement depth. the disconnector may need an additional turn of the screw to achieve a no-bounce condition on the chi-com rifles.
file the safety lever engagement surface to barely clear an un-cocked action. .005-.010" seems to work for me. cock the action an re-engage the safety again...check for proper function.
always put safety first when wrenching on a firearm. make darn sure you can really tug on that trigger without the hammer being loosed. a close eye on the hammer/trigger will illustrate, better than words, what a 'safe' setup looks like.
after a correct installation, the redstar trigger (on safe) will rotate less than half of what most commie triggers do.