Multi pins are the most popular no doubt. I have used both and I prefer the single pin, less clutter, better field of view, and for me it allows me to concentrate and aim more precise with only the one pin there Dan
I shoot a 3 pin Viper sight, a Ripcord rest, and a Trophy Ridge quiver. I wouldn't buy the quiver, but it came on my bow and it does a good enough job for me.
Thats the one thing that could be improved on. But I have never had any problems, and I'm hard on equipment.
They seem pretty strong to me. Never had any problems with bending or breaking them. Knock on wood lol
I try to be careful with my sights because if i break a pin thats just buncha money that could have been saved...and hha dont cover pins =[