RE: Do you use a Rangefinder?
I would say it's a very nice tool to add to the arsenal. I never owned one until this season. Glad I did. You will find two schools of hunters with how they use theirs. Some opt to range directly before shooting, others range specific landmarks once in the stand to use as references. Either way, it's a nice additional piece of equipment to have, but like Ben said, it's no substitute for practice.