4625 FO load is listed as 6%, I make my melts and candles at between 7% and 8%. For me it's a happy place in terms of the CT, HT, and the wick. Adding more gives me bigger mushrooms and would force me to find a larger or hotter wick. So, my blend can easily support that load. Melts, of course, don't need a wick so going higher may be possible but the soy wax that I use supports 6% to 9% so I'd have to make even more changes to go higher.