I know you guys are just trying to correct anything I may have said wrong so as not to confuse or mislead others, but I am aware dash-shining isn't always possible, I am simply putting it out there as suggestion for Fox players to try. What I suggest doing is using it as a follow up, for example, d-air, shine, dash-shine. Or f-throw, dash-shine. I DO NOT suggest trying to chain it because it is easily escapable from what I've tried. However, I have not perfected the jumpshine, and my movements may have heave either been delayed or not quick enough. (I have used dash-shining in both wi-fi and regular matches.)
Note: The best results I have gotten out of this, f-throw, dash-shine, dash-shine, dash-shine, shine-spike, during a real match against my brother. (He isn't pro or anything, but he is pretty good.)