Translation Tables for Convection/Microwave Cooking?

I haven't used any of the combination cooking options, but for just the plain convection oven, you either reduce your temperature by 25 degrees, or reduce the baking time by 5 minutes (keep an eye on it though, things brown faster). I have baked brownies, pizza, cookies, casseroles, roasts, chicken, just about everything using just the convection oven and things turn out good. I'm not going to bother trying to figure the other stuff out.