I'm not that worried about the weight, I just need the extra inch or so of space by taking the pulleys down. A chunck of 6061 that big will probably set me back 20-30 bucks, I only paid 30 bucks for that pulley to begin with. Plus machining square keyways is a pain in the ass. If I have to I'll drop 100 bucks on an AMS or other cheapass pulley and knock the last one off and just keep the two larger ones. Sucks that I screwed it up to begin with, but stupidy is normally expensive.