There's actually a problem i noticed while analyzing the ROM through an encounter editor. On route 14, the documentation says Duosion and Gothorita should be available, but the encounter editor states that rather then Gothorita, it's pre-evolution Gothita is there. I've changed this on my own ROM, but it should probably be fixed in the whole patch. (I've fixed all my other problems concerning using 3.1 and finding Zapdos, thankfully)