I've used the Wheeler analog, an older Sears analog inch pound and Fix-It Sticks. Prefer the Fix It Sticks hands down. After 11 Scope installs, last 4 with the Sticks, using the Fix It Sticks have been true and IMHO are much easier. Quick, problem free and dead on. Knock On Wood So Far. So I'll stick with the Fix It Sticks.
I own both Wheelers and perfer the analog. I can hardly hear the digital version. I did not know I could look at the display while using it until I read this blog, so I am going to give the digital another try when mounting my new CT 3X18.