Why wings and tenders behave differently
A wing is skin-on and bone-in, so the skin has to render and crisp while the meat stays moist. A tender is a small, lean strip with no skin, so it depends on the coating and a short cook. That is why the same breading can work on both but the timing does not. Treat them as two problems, not one.
Practically, that split decides your setup. Wings want a longer, slower first pass so the fa under the skin can render before the surface sets, then a hot finish to color the crust. Tenders want the opposite rhythm: a quick, hot cook that sets the coating before the lean meat has a chance to dry out. If you build one timeline for both, one of them always loses — either pale, flabby wing skin or a tender that saws apart under a knife.