I use a rangefinder quite a bit on targets and ranges.
BUt, I have never used one in practice. My wife does and I cannot argue the results I suppose.
But, my concept is this; if every time I use a rangefinder and it tells me that I am wrong what is that re-enforcing? That I cannot judge distance.
I would suggest using steps or judge the distance and make a shot.(on targets) Then figure out if you are hot or short and why.
I am just not smart enough to be told every time I figure a distance that I am wrong and go into a shoot and automatically figure that I am right, now.
The logic here is that if my rangefinder has told me that I am wrong 10,000 time how can I be right this time?
This to me is just an extension of the same positive re-enforcement to improve my shooting. I have to believe it before it is true.
ken12