That is a great question
I went through the same exersize before I purchased one of them
The tracking on the P2Z is far superior to the EM-2 mount
The P2Z mount can handle a slightly heavier load too as per TNR when you talk with them.
The P2Z mount is also slightly lighter in wieght than the EM-2 making it a better mount for travel too
They however are so close in similarities that it is almost mind boggling and a pain when you are trying to decide on one of them
However if Everything were equal on the two mount and only the tracking on the P2Z is better and not by a slight margin but quite some bit that is how I decided on what mount to purchase for the small mount.
Remember that when you but one the mount legs are extra too
I went through the same exersize before I purchased one of them
The tracking on the P2Z is far superior to the EM-2 mount
The P2Z mount can handle a slightly heavier load too as per TNR when you talk with them.
The P2Z mount is also slightly lighter in wieght than the EM-2 making it a better mount for travel too
They however are so close in similarities that it is almost mind boggling and a pain when you are trying to decide on one of them
However if Everything were equal on the two mount and only the tracking on the P2Z is better and not by a slight margin but quite some bit that is how I decided on what mount to purchase for the small mount.
Remember that when you but one the mount legs are extra too