Over the years, along with fixed pin sights I have used many types of pendulum sights. From the simple and average cost pendulums to the very sophisticated and expensive types. Most did a reasonably good job and some were noisy. Some were fairly accurate on uneven terrain, and some were horrendously inaccurate. Additionally, I use several stands of varying heights and most pendulums must be calbrated to a particular height. I found none to always be an absolute cure for having to estimate yardage that exceeded 20 yards.

If you are on terrain that does not have to many irregular slopes or rises in your shooting zone, some pendulums are on the tack out to 20 yards. Regardless that some say accurate to 30 or 40, I never found one that I would trust to that distance.

With today' s bows, a single pin will usually do the job out to 30 yards if shooting, IMO, 65# and up, or a little less and a dash of " Kentucky Windage." My 3 newer bows sport 1 pin. Even my 1979 PSE Pacer sports 1 pin because I use it for 0-20 yard max.

Nevertheless, as it is with most gear, if it fits the shooter' s bill, gives confidence, and enables success for the shooter, it is a personal call…..like the " Whacking Basket" and " No-Peek."