I am rebuilding my Black Widow with the 5 filament Prusa multi material upgrade 2S. I am going to also take Printalicious here back to it's early days and mount 3 extruders to the top of the frame. Like it used to be. Like this..But I will use titan extruders as I have enjoyed great success with them and I really like the 3:1 gear reduction they offer. I am going after color printing in 2 forms. One with prusa mmu2s and one with the diamond hotend and the potential for color mixing. I will also upgrade printalicious to the new SKR 1.3 as this moves forward.