I tried adding palm to my 464 last night. It's feather palm, a pillar wax, so maybe the glassglow would perform better. I did two candles, with palm at 10% and 20%. I just poured the same FO in 100% 464, so next week I'll test each one in different areas of the house, and if I remember report back on performance. Not happy with the looks of the candles. It cooled ... grainy. There's some frosting on both w/palm, and no frosting (yet, anyway) on the 100% soy. The candle with 20% palm sunk in terribly when cooling - and dried all grainy/funny looking. I did take a picture. It took three different blasts with the heat gun to get a nice top (just kept sinking back down - big air hole around the wick). And, so, now there's a visible layer on the top where I used the heat gun. I poured at about 150º for all candles. Added FO (CS Caramelized Pralines) at 1 oz ppw at 175º for all three. After capping the two with palm wax overnight, there isn't a noticeable difference with CT between the 10% and 20% palm.