Image Support Belts: Advanced or no?

[Jojojo]

I'm starting to think that my Tanner's Belt is giving me the free image support (+1) instead of the advanced (+3). My only reason for thinking this is a lack of HQ's recently, but it occurred to me that I don't really know for sure. The duration is similar to that of advanced imagery, but for all I know it could be different.

Does anyone know how much bonus the belts give?

It's kind of an important question because if it is only +1, I am tier 0 instead of tier 1. And I will be pissed.

 

[Latharia]

Guild-obtained image synthesis support belts give the equivalent bonus to craft skill as Advanced synthesis image support for that guild.

Supposedly it gives the +3 skill. I haven't done any testing with my Culinarian's Belt, but it feels like FFXIClopedia is correct.

 

[Sanoske]

It gives Advanced Imagery.