The 10% was to show how it works. Like when talking about %10 car attack. The new bonus would be applied to original base max energy so the more items you get that add +max energy, the more energy you need to fill up your bar. Oh I do wait till it is full like everyone else, having a bonus like this would not make anyone get more energy per minute, just allows for people to accumulate more before they go to waste. And I don't HAVE to check every 74 minutes, is just I waste energy if I don't. And when I do, I can do the ultimate gold free.