I have been doing R&D with 4627 for a while and struggling with wicking. I discovered I was giving up way too early on a test burn. With this wax you need to burn it to the bottom to see how it performs through the whole candle.
I use a 3” diameter 3” tall glass tumbler with an LX26 and have hang up to the middle of the candle (20-25 hours, four hours at a time). From the middle to the bottom, I don’t get the traditional edge-to-edge liquid melt pool. There is always about 1/8” of wax surrounding the melt pool but it continuously gets consumed as the candle burns to the bottom. The throw is still fantastic, zero black on the tumbler, and only slight mushrooming in the bottom third of the candle.
I suggest trying an LX24 or 26, possibly smaller based on what @TallTayl said about tins. Don’t give up on it too early.