I have one Jewell trigger on a custom rifle
I received this past spring. No creep whatsoever. I'm not a target shooter or competitor but I've been hunting regularly for the past 40 years. The Jewell trigger I have is by far the best trigger I've ever experienced. It came adjusted pretty light by Kirby Allen and I've never messed with installation or adjustment since receiving it. I've shot a couple big game animals with it this year and it's been out in the field more than most hunters get their rifles out & about, but perhaps not long enough to have experienced problems that dirt may cause.
The friends that have pulled the trigger on my Jewell all just smile in amazement and disbelief. I've pulled a lot of different triggers over the years and this one is amazing. You'd have to work hard to jerk the gun while squeezing this trigger off. It's that light and crisp.