That is a very great article. I for one am seriously open for this option as well. It seems very good on different levels.
I have both types of accounts. Both Rev Share and CPA. All in all i think,
a hybrid type deal can really work.
But as the article said, new affiliates may want CPA at first, for cash flow, then maybe switch over to a hybrid.
Hybrids seem to share the burden of getting and keeping good traffic.
Just my thoughts.