I don't know the guy behind the subject of this post, so there's no back-scratching going on here, but I'm suitably impressed to enthusiastically endorse his 510 cart mod. Many cart mods focus on coming up with better filler materials to try to provide better wicking to the atty bridge. Some work better than others but none of them provide what I would personally call a "satisfying result". Enter SCOTTYBALLS and his "Zero Filler Mod" (ZFM). ...