I've got a rules questions on the interaction between an item's base qualities and ones added from mods. I looked through the core rules as well as did my best google fu in an attempt to find an answer, but I was unsuccessful.
Let's say I'm using the new Guard Shoto from Keeping the Peace.
It has the item property Deflection 2.
If I replace its crystal with a Lorrdian Gemstone and successfully mod the gemstone with it's "2 Item Quality (Deflection +1) Mods", what happens? The Guard Shoto already had Deflection 2. Because the mod is called "Deflection +1", to me this means that a Guard Shoto would increase its Deflection quality twice (instead gaining Deflection 2 if didn't already possess the quality) resulting in a final quality of Deflection 4. Am I reading that right?