You sure have done some great testing with TMG gold. I need more time to sit back and do testing too, i'm having fun with 122 red, initially i wanted a nice bright red like the american eagle 9mm? but after cooking, it's a deep red to purple that looks really good.
Keep up the good reviews, looking forward to trying to harden some of my cast in the next week or so, see if i can get similar results to you.