I was thinking mainly about capacity, but decided to include EXP into it.
Right now, I see people call for Double EXP/CP campaigns and seem to lose incentive to group up and gain CP when there is no event.
Having a ring set for a duration might help during the "off-season" and maybe help people set time every week for CP with a group that feels like a worthwhile investment?
I dunno, just a thought.
As it stands, I'm really not thinking about EXP gain at all. I could care less how slow/fast someone gets to 99.