I been using the pint size regular mouth mason jars 3" dia., I like the zinc wicks the best, no smoke or soot,even burn , but the 51z just wasn't cutting it, too long to get a fmp. Im wicking up to a 60z. you might have to use the 61z. I would try either on of the 2 60z or 61z. I tries lx 18, no fmp, smoked htp104 fmp, but smoke & soot. Im sure the more experience chandlers will give more input. Good luck!!! Im testing too...