I just started testing tins. How do you decide what wick to use? I ask this because I had different results each burn. I didn't make any judgements after the first 2 hour burn. After the 2nd burn, a few hours, there seemed to be a clear winner, full melt pool, no mushrooming. For the third burn I let them go for a really long time, like all day, and the winner was no longer the winner. And the wicks that seemed too small initially were fine - full melt pool, no mushrooming. But I'm wondering if that is a realistic way to test. I'm so confused. Because for the first two burns of the smaller wicks - they were definitely too small.