I could be wrong, but dragonquester, you may be overlooking the concept of EV's. If you don't even know what they are, then that in it of itself is your problem. See, you can't determine the IV's of a pokemon you have trained without knowing its EVs- which, unfortunately, means you basically have to know all of the pokemon it ever battled. If you want to learn more about it, check out serebii.net's resource on EV's, on this page
Last edited by Pikafleg; 5th February 2013 at 3:41 AM.
I have 2 Friend codes I use about equally. One is 4055-3723-1345 and the other is 0576 3520 6954. I'll try to mention which one to look for when needed, if I don't then ask.
I try to train pokemon with the best natures and IVs, but generally don't breed for IVs and occasionally use a pokemon that could have a better nature out of laziness (on the other hand I have reset or recaught the same species 20+ times to get the best nature and decent IVs sometimes). I somewhat do EV training, but don't calculate it out so it's perfect, just rely on the chart in the super training thing.