Here are the colors I've run through my Filastruder so far and my impressions of them. I'm trying to do them in an order so that the colors are similar and one batch can quickly transition to the next. Here is what I've done so far.
Lemon/Lime (1:64 master batch ratio) - The color came out very close to a nice lemon lime color. The color varied back and forth between green and yellow as it would hit one of the master batch granules.
Yellow (1:32 master batch ratio) - I wanted a color that could be used to print a Pikachu for my daughter. For a true Pikachu yellow, I probably should have added a tiny bit of red to it. The yellow came out nice although I'd like it to be a little darker and richer.
Orange ( 1:32 master batch ratio) - The orange came out almost like a traffic cone orange. And again, like the lemon/lime, the color varied between yellowish to reddish as it would hit a yellow or red granule.
Red (1:64 master batch ratio) - I really wanted a fire engine red but this didn't come close. It was a little light and pinkish. I think the problem is that I doubled the amount of ABS Natural when I was mixing it but forgot to double the master batch too.
Purple (1:32 master batch ratio) - I wanted a grape color but this came out too blue and too dark. The color was much more consistent than the others even though it was a mixture of two different master batch colors. I think that was because the blue color is a lot more dense and dominates the mixture. Next time, I'll try more red and less blue.
The colors that ended up with a variation to them were nice but if you are wanting solid colors, then these master batch granules are not quite the right size. They probably need to be at least a quarter of their size in order to disperse the color more evenly.