In both manuals pin assignements for G2 and Anode of both 4P1Ls are swapped, consequently in the schematics, photos and instructions I have seen.
The correct pin assignement of the 4P1L is: Anode is pin #2, G2 is pin #3.
See attached datasheet. Should that be a known fact please ignore this post. I couldn't find a thread covering this topic.
I tried to figure out if the datasheet is correct by inspecting all 4P1Ls I have. In one more recent 4P1L which doesn't have the getter material spread inside to such an high extend as usual I could clearly recognize that pin #2 is connected to the base of the anode with a short wire. But it is still difficult to take a photo.
I rewired my Smash today but I don't like to give an early statement.
