Thinking of getting book back from Amazon good idea?

I was thinking of getting dating ebook back on Clickbank as Amazon only sells 2 or so every few months

However, I have established my ebook on Amazon rankings and search quite good even though its a few sales every other month.

Is this a good idea to change or not?

Can I have both Clickbank and Amazon?

Will affiliates mind?

I need honest input

I'm not sure if there is a regulation that doesnt allow both submissions to be there.
About the affiliates, I think they might not love it.