CSW! It is interesting you say you don't want to pursue MMA but you are talking about mixing your martial arts. :) Maybe you mean you don't want to fight in a cage for money?
Note that the gold reflector will shift the colour temperature of everything it hits, so if you're photographing a model wearing white, and that white has to look white in the final picture, you're just going to have to put things back the way they were in post anyway
Reflectance is also commonly used as an evaluation criterion for luminaire reflectors. The reflectance of this translucent piece of glass is 80%. Note that the angle of the incoming ray is the same as the angle of the reflected ray.