I wanted to share a gem I found when I was refilling my Pro-100.  Precision Colors stopped carrying the flushed empty carts and I was searching for some flushed and ready carts and found Rick Johnson via Jose Rodriguez.  Rick produces some high quality refilling supplies like flushed carts, chips, resetters, etc.  If you are in the market for products like these, I recommend checking Rick's eBay store first to see if he carries what you need:

https://www.ebay.com/str/refillsuppliescanon

I'm just a happy customer and when I ordered my CLI-42 carts, I didn't even know Rick is a Qimage user until he contacted me saying he recognized me from my order!

Mike