Everybody knows that when you buy an item and go to options and click anywhere you get the skill points without actually equipting the item, but few know that you can go to your abitlity charts and go on one of your partners characters and select an item and do the options glitch with them, raising their stats
ive known this for as long as ive known that u can use the stacking glitch (the one ur talking bout) on sonny and that was a while ago so its not rlly new