Checking is the stat king for Minamino I've found. These days life is just too busy to be able to handle all the minor details while taking on major tasks. Checking will allow Minamino to ensure that all of his details are in order and that he hasn't missed a single thing. It'll be the stat that ensures that he'll not only remember if he's forgotten something but also know exactly what it is that he has forgotten. Plus with English being as difficult as it is, being able to check your grammar and spelling will only help to put his stuff out in a way that will be less inclined to be torn down for those minor mistakes. The other big asset to this will be how having a strong Checking means that his chequeing account will also in good shape and Minamino ontop of his finances despite the temptation to buy random things.