+1 for Fototechnik Suvatlar, the guy running the show is very helpful and will even try to locate special compounds for you that are not on his price list (assuming it is legal to sell them, of course).
Another venue would be to get a cheap pH meter, which should help you to get your developer at least into the ball park. Whenever you try a new developer, lower pH until it produces no fog on unexposed test clips, then record that pH and maintain it whenever you mix a new batch of developer. This way you can eliminate most inconsistencies, especially with mixtures that rely on exact proportions of unstable compounds like NaOH.
Trying to be the best of whatever I am, even if what I am is no good.