Trhere’s more to suspension than meets the eye. Each design has their advantages and disadvantages. Single pivot is simple to rebuild and since the shock is horizontal to the force applied to the ground, there is little pedal pod. But it doesn’t do much for braking. One of the best in the business for braking and pedal bob is Trek’s modified 4 bar suspension. It has great response with trail chatter, handles big hits nicely, minimal pedal bob, and they have ABP. This stands for active braking pivot. It puts a pivot around the rear axle which means that the suspension won’t lock up while the brake is applied. It is quite ingenious. I ride a trek remedy 9.9 and love the suspension.