Warren Marshall’s Enhanced MOP Boolean Assembly
The Enhanced MOP Boolean Assembly is a direct replacement for the assembly that comes with the MOP Boolean Toolkit. It provides the same functionality as the original MOP Boolean assembly while simultaneously allowing the power user to access more advanced functionality.
In a nutshell, instead of boolean operations being performed in batches they are performed as a stack. This gives you more power and flexibility to create complex interactions while still retaining all of the old functionality you know and love.
Click this link for more info and to add this great resource to your MOP Booleans toolkit.