On mages: I've never upgraded mages in the field, I don't think its that big a deal. I don't mind having to upgrade them in a city, but its a pain to have to move them all to whichever city has my mage guild. With most units thats not such a problem; when mass producing melee or recon units, there are hunting lodges and training grounds all over the place. But I tend to only ever build 1-2 mage guilds and make all my adepts there, and the guild is *really* expensive, so its much more annoying to have to find which cities have the guild in them for upgrading purposes. Also, with normal units you can build them, whereas with the mage units you can *only* upgrade to them, so making the upgrade more difficult is even more irritating. Unrelated Bug: Python traceback: File "CvSpellInterface", line 16 in cast File "string" line 0 in ? File "CvSpellInterface", line 426 in SpellConvertCityBasium. Basium just showed up a few turns earlier I think. Save attached.