This is such a great suggestion. I just wanted to say.

I am only now discovering the ease of getting rid of my soils of war using quick synthesis. Up until a little while ago I was trying to HQ everything but for desynthesis, what is the point?

You are at level 50 already, aren't you? I don't quite understand Desynth Master Materia but wouldn't it affect that? I guess there would be less chance of obtaining it...