just picked up a used 21sf. was told gun was only shot about 150 times. i believe this because none of the blueing is wore off. i also own 3 other glocks so i am familiar with there triggers. now my question. it has the 3.5 ghost trigger instaled.trigger may be lighter but feels mushy & longer pull to me. is this the way ghost triggers are. thinking of puting original connector back in. do 21's have same trigger feel as other glocks or are they different. thanks.