Thinking of grinding for prismatics. Advice?

[Necronaught]

That was a once off action prior to the patch, they aren't trimming the list every week. I have been on 0 merits for 2 weeks since the merits I earned for the shields ticked down.

Ok cool. I misunderstood. I lost 2 weeks of a pledge when the patch went live. I assumed it was a permanent feature to get people more active in PP.