It seems if you upgrade your academy, any old upgrades not bought at prior academy levels accrue the new cost in grog per trainee in Tavern. Not the upgrade cost, but the new additional training cost. E.g. Level 5 academy and wanting to upgrade Brute Tower bonus (an Academy lvl 3 skill). It now adds 100 grog per brute just like the level 5 upgrades. This should not be or different players could be paying different amounts for a brute (or any other pirate) with the exact same skills depending on when they upgraded. Clearly the old skills weren't 100 per upgrade or my 12 skill brute wouldn't be 600. Can (and should) certainly be retroactively fixed in an update so the per pirate cost is the same for everyone with the same skills. Hmm, as I write I wonder if added time per upgrade is similarly penalized for upgrading Academy before all skills puchased. Fix this please and level the playing field for players or you'll end up losing some players if they can't keep up with similarly ranked players who are paying less in training cost and time. Thanks!