Have you gotten started yet? I ordered mine from Green Leaf and they were here in 3 days from the order date. Just started dosing PPS-Pro this week. It seems like there's already a difference in the tank.
I would start reading those and order your dry ferts at the same time as well. I ordered mine from Aquariumfertilizer.com and they do have great customer service. I have a few problems with my order, but they answered within minutes- extremely cheap and great customer service... good luck with your read..