Like Rybo, I have never wounded a deer or missed one thus far in my hunting endavors. I haven't taken as many deer though (around 15) but until a couple years ago we were only allowed one deer tag per year.

I do not understand how this information (Rybos or mine)pertains to why one should or should not carry a rangefinder though? Please explain.

I am pretty good at ranging distance (thanks to years of 3D shooting) butI still always take my rangefinder with me each trip out.

As Atlas and Bigj said I can't see a good reason to not take one with me.