I also had a Fletch Hunter that would just go off when I'd draw.
Each time I thought I bumped the trigger somehow. I got into the habit of pressing my finger behind the trigger. When it went off again, I got a new release.
Other than that, I never had a problem with a release. I have been using my current release for probably 10-12 years.
Its called a Zero Gap made by HHA.
So I know they will last at least that long