P-Upgrade for Wadia 301

Is there anyone who could share experience with Wadia factory p-upgrade for Wadia 301 CD player?
I just shipped my 301 out yesterday for the P-upgrade and a new laser. I will let you know my thoughts upon its return
Hello, what is the P upgrade for the 301? I have a wadia 302...are there any upgrades for my model? thanks
Here you can get more information on p-upgrade: