As seen in the first line under the permissions tab, GroupManager is NOT listed as supported. Can you please add support for GM. Or have you already and I am just messing up, because as of now any group that is allowed to build automatically has access to PS. I only want Owners and Admins to be able to use PS not everyone. Please Help!, Thank you!!!!

Would it be possible to add a Group Blacklist node in the next release?

Should be supported as GM uses superperms, and PS supports superperms.

How do i remove the permission from my builders/mods then?

That is a problem with your Permissions Manager, not PS. Switch.

Not going out of my way for GroupManager users. No. Switch to a real Permissions plugin or stop using PS.

What permissions do you reccomend?

PEX or PermissionsBukkit would be nice choices, they are both modern forward thinking systems.