You'll know you hit your seed if the Pokemon has the correct IVs.
Shininess, on the other hand, relies on you hitting your PID Frame, as well as the right seed. If you're getting the right IVs but not a shiny, your advances are off.
If it has the wrong IVs, your timer0 is likely screwing you up. I'd just keep trying since you're bound to get it eventually. If you're consistently off, though, you may want to find your parameters again.
Shininess, on the other hand, relies on you hitting your PID Frame, as well as the right seed. If you're getting the right IVs but not a shiny, your advances are off.
If it has the wrong IVs, your timer0 is likely screwing you up. I'd just keep trying since you're bound to get it eventually. If you're consistently off, though, you may want to find your parameters again.










