Yep the "15 minute" trigger job isn't a bad option to clean up a stock trigger but it's no where close to a good trigger, neither is a Jewell in an AR unless you like readjusting them from time to time.
What most folks try to accomplish requires changing the angles so the hammer isn't cocked further with the trigger pull, a built in safety BTW. And just like sarge says, the triggers are only surface hardened, go beyond the hardened steel and it's just a matter of time before it screws up.
Read lots of disgruntled reviews of Bill Springfield's trigger work but there are just as many positive reviews too. Just depends on how many rounds folks shoot.
Save the headache and get a real trigger, RR is a good one, Geiselle is another one. All depends on how serious you want to get.
