On a 5-pin slider, I have 20/30/40/50/60. 60 being the slider pin. I could go 30/40/50/60/70 but I could end up with close frontal shots as a solo hunter and need to hit a softball size target from 20 yards in. I'lll need to see if my 30 yard pin would still hit a softball size target from 20 yards in. Maybe not. My bow speed is not fast at 252 FPS.
I've also considered the potential difficulty of shooting pin gaps between 60 and 70 because every yard at those differences can be so significant that one really needs to know the exact yardage. But at those distances, one should have time to range and move the slider to exact yardage. Or I'll just sneak closer which has always been my first preference. I did kill an elk at 64 yards as he stood perfectly broadside.
I've also considered the potential difficulty of shooting pin gaps between 60 and 70 because every yard at those differences can be so significant that one really needs to know the exact yardage. But at those distances, one should have time to range and move the slider to exact yardage. Or I'll just sneak closer which has always been my first preference. I did kill an elk at 64 yards as he stood perfectly broadside.