I need to add more flow to my 315G build. I have 2, 1.5" bulkheads but they are not cutting it and I don't think I have room to add 2 more. I want to go with 2, 2" self starting PVC overflows. I have the plans from the sticky but was wondering if there are any more variations out there that someone might have links to? Success stories would be nice as well.