Quoted from MegaMewtwo in the Simple Question/Simple Answer thread in the WiFi section, regarding the Box Trick for EVs.
Sadly, your quote is incorrect. No experience also means no EVs. No EVs means no EV training. So if something's at Lv100 and not EVed right it's screwed.
Edit : I will confirm this either way independently for you tomorrow, as now I'm curious as well. But it's like, 3am. I need sleep.