I've recently been playing around with builds for specific pokemon. One in particular I've done involves getting a certain Hidden Power type. After researching and doing the math, I know what specific IV layout I need for my desired HP type, but I'm still wondering what the best way to check the IV values is. After a bit of internet poking around, I've seen two main ways to check values: IV calculator paired with rare candies/Battle Institute, or the Stat Checker in Kiloude City. The main problem I see with the Stat Checker is he doesn't give specific values, only an answer that goes for a certain value range. I can see where that might be useful if you're going for full IVs, but not so much for determining HP typing. I've also heard that some IV calculators might not be completely accurate, and a couple I've looked at seemed buggy or broken.
Does anyone have an IV checker and/or method they would recommend for use in determining specific Hidden Power types?