I’ve tried them all, owned a few.
My current favorite is the Pistol Bit.
The blades hold an edge a lot longer than Lazer blades, and it doesn’t use up as much battery power as the K-drill (and it’s faster than the K-drill)
Haven’t tried the 2.0 yet, but I like the idea of a center pin (probably makes it safer to use)
Side note, I lost my cover last season and just replaced it with a Cold Snap. That thing is awesome! It took a short learning curve where to place the blades while snapping it down, but I’ll never go back to a bungee one.
If your PB is an 8″, they had a centering point before the 2.0. I think only the very first version of the PB 8″ did not have a centering point (must be what you’re running). The new element of the 2.0 is the Turbo blades.