Many eyars ago now .... I tried one for a few years ... a Cobra brand two pin. For about 40 years now I usually hunt from a tree stand set up about 20 ft. Shots I get are less than 35 yards 90% of the time. I set the top sight for 20 yards dead on at 20' off the ground. That put the bottom sight dang near dead on at 35 yards. I had zero issues as far as accuracy.

I did switch back to a 2-pin sight a few years later after the pendulum froze up on me while I was hunting on sleeting/snowy day. I set for dead on at 20 and 40 yards at an elevation of 20'. This was what I was used to for some 20 years or so before the pendulum ... again I found not issues at all with accuracy and clean kills out to 35 or so yards.

Bottom line with adequate practice, there is really not much of an advantage in my book to a pendulum.