This mod changes the Research and Workbench speed depending on what material you use to build it with!
[list]
[*] Steel: 110%
[*] Silver: 125%
[*] Plasteel: 135%
[*] Uranium: 150%
[*] Bioferrite: 150%
[*] Gold: 165%
[/list]
This mod also has patches included for GlitterTech and Ambition of the Cosmic:
[list]
[*] Starsteel: 200%
[*] Titanium: 200%
[*] AlphaPoly: 350%
[*] BetaPoly: 500%
[/list]