Which Digital Level Gauge to buy?

the way I see it is if the turntable and platter are not perfectly level, all of the other settings are compromised in one way or another, especially on a unipivot arm. I questioned the expense when ordering the cartridge man, bit after receiving it and using it, is now indispensable. I also use it to set up my record cleaning machine, a Loricraft.

"I also use it to set up my record cleaning machine, a Loricraft." .... good grief

Loricraft has a tonearm with counterweight and works better when the platter is level, and is more sensitive to out of level than a VPI type machine.

I own a PRC4 ... I just don't buy into your statement of it being "more sensitive" for cleaning a record.

Certainly more sensitive to level compared to a VPI 16.5 which I had before the Loricraft. However, certainly NOT nearly as critical and essential when compared to the turntable and tonearm though. Still, I found it useful for my PRC-3 anyway.