If you're going for completely undetectable + competitive advantage, you're looking for rebattle, fast hatch, and egg generation.
Actually I take it back about the shiny thing. The one code I'd allow is the TM one, since that's (somewhat) easily duplicatable by a person with 2 carts.
True. Since there are IV battles, the IV checking code is probably pretty close to being not as much of a boost as the aforementioned things. Although I don't really know how the IV check code works, so correct me if I'm wrong. XDDon't forget the IV-checking code!
And Xyra, can't you edit the poll to add the two options you forgot?
True. Since there are IV battles, the IV checking code is probably pretty close to being not as much of a boost as the aforementioned things. Although I don't really know how the IV check code works, so correct me if I'm wrong. XD
Damn, missed Re-Battle code...
Well, you'd still need to hatch them eventually even if the IVs sucked, but I guess running with quickhatch as well (lol more hacking) makes it work out ok.
Forgot about SRing for a moment. My bad.No you don't need to hatch them. At the start of breeding it doesn't really give an advantage because you're just looking for IVs on parents. But, once you have 2 really good parents IV check is a huge boost, especially when hatching something that requires a specific ability + nature.
1. Fast Hatch/egg generate, saving before each egg until you find an egg with the right nature/ability/gender/whatever.
2. SR on that egg like crazy, IV checking as soon as you get the egg.
3. If IV check says the IVs suck, just SR
4. Repeat until you get great IVs on that egg, hatch for your awesome poke.
The advantage over running back and forth on your bike is really obvious ain't it? The advantage over quick hatch is you don't have to sit there waiting for the animation sequence on every single egg. -.-

If you're going for completely undetectable + competitive advantage, you're looking for rebattle, fast hatch, and egg generation.
I'll take your word for it since I can't check myself.From my own testing, one of those is detectable.