Aardvark,
Most of my prints are also functional parts, so in most cases surface perfection is not needed. So what PLA based material, (you have or are using) that is superior to ABS do you recommend? Please be specific as I want to purchase and try.

I'm open to trying replacement materials for ABS, but since I have never had any problems printing with ABS that were not my own mistakes, I just haven't had the need to try the PLA alternatives.