Tried the GB444 last night with Nag Champa FO, and you're right, the tops did look very smooth for a 130* pour, although I did get the sinkhole (a minor one) at the wicks. No cracks, though, and not one single wet spot, even this morning. GB444 is pretty much 98% GB415 and 2% UVA. I was worried about the cold throw issue so I had my husband smell it this morning without giving him any background on the candle. His first impression was that the throw was really strong so I guess I may have candle nose. I think I may try pouring a tad hotter (140*) and putting the candle in an insulated area to cool and see if that affects the sinkhole issue at all.