Hello,
As a new activator “WWFF” should I use HS0ZPS or HS0ZPS/P which is the most correct, as there seem to be different opinions regarding this so better to ask than not to know!
The use of suffixes is governed by your licence – in many countries, the use of use of such suffixes is optional.
However, IMHO, it is good practice to sign /P or /M where appropriate, as this (a) highlights you may be using limited equipment (b) highlights you are giving away some references