I just bought a boge f16 carto tank and a pack of 5 extra f16s. This will be my first carto experience and while I have done my research on proper filling and usage, Ive only really looked into the condom fill method in detail. I obviously cant condom fill the f16 because it is a flanged carto. I have seen the thermometer shake method but am unsure of exactly how to do it. Would that be the best method for filling the f16 carto?