The slow converters were nearly ninety percent efficient in their conversion of unaspected mana to personal mana, but they took time. Hours, usually.
Next were the fast converters, which were about sixty percent effective, but could convert a few hundred mana in five minutes or so. That was the converter most people used, but there was also the instant converter that had an awful twenty percent conversion efficiency but could convert a few hundred mana in seconds. They were sometimes necessary in the middle of a fight, though never desired, as you were essentially burning money.
Their own converters worked for Tier 10 through Tier 12 mana crystals, but seeing how cheap they were selling the next set, he and Liz bought the Tier 13 through Tier 15 converters.
Even if they doubted that the
