Single pin makes sense. But it doesn't make sense. ( if that makes sense?) if your still hunting there's no way to check range, check sight and shoot if you come up on an animal and they are alert. If you stalk something bedded and can dial it in your good with a single pin, odds are against that simply because it's the "perfect" scenario. We all know perfect and hunting don't mesh well. I would never have less than three pins. And would ultimately prefer 7 pins. To have a 20,30,40,50,60,70,80 would be great. If they are gapped enough to not be cluttered. I still think it boils down to personal preference and spending enough time with the bow in the heat of the moment (animal in range) and then reflecting on "what would have been best in that situation?" In order to figure out what you really needed for the success.