Hey Eric welcome to wickless, I think Einstein will really like it. I just started making clamshells myself. I am using PB and 464 50/50, I was having trouble with blotchy kinda looking tops so I added a small amt of 4627, perfect. I also made palm votives last weekend and mixed the feather and starburst 50/50 Wow. I am not going back to one or the other, I will always be mixing. Anyway I poured a clamshell at about 162 degrees it came out good too. Just have to watch the temp in the clamshells LOL I pour my votives at 195 usually, so it was different. Just wanted to share.