I'm a big fan of the Caldera Cone. Have migrated to the Ti-Tri versions so that I can use a twig fire as backup if I run out of alcohol or Esbit, or if I am melting snow in the winter. I have two, one that fits my larger 1.3L Evernew and one that fits my Stanco aluminum greasepot (and also fits a 900ml Evernew BTW).