Best wax for clamshells and fo load question

[RWV]

OK, I've read the threads. Saw CW CBL 141, IGI 4794, and Ky parasoy for tarts, but want to know if these would be the best for clamshells.

Any other suggestions for clamshells?

Also, I've seen threads for higher fo loads so the scent in the clamshells last longer in the warmers. Which waxes will hold 1.5 to 2oz/lb for the clamshells? I use anywhere from 8% to 10% in my container candles usually, but my container wax combo may be a little too soft for the clamshells.

Any suggestions or recommendations are greatly appreciated!

P.S. I'm computer challenged--how do you get your title for the thread to be in bold? I tried highlighting it and clicking B for bold, but doesn't seem to work.