Arrows pointing wrong means the signs weren't the problem, your layout was.

Oh man, your sister is onto something and you should totally push it further. My trick is to spray them with oil then hit them at 380 for about 8 minutes, then shake the basket and give them another 4 to 5 minutes so both sides get some crunch instead of just the bottom. The busting open thing is real if you go too hot right away, so starting a bit lower and going longer keeps the inside steamed while the outside crisps up. If you want them to really taste like potstickers, add a tiny splash of water to the basket and cover the top with foil for the first few minutes, then pull the foil off to crisp. Just don't crowd the basket or they'll steam each other into sad gummy lumps.