Syndicating your Articles – but should you publish them on your own site

I have been building a list of good sites who want to publish articles I distribute – in return for a backlink in the bio.
Some of these sites are PR 6,7,8 – so they will obviously rank higher.

This is content I have had written specifically to syndicate and re-distribute, but I was wondering 2 things

1) Have the article link back to my homepage and not publish it on my site.

2) Have the article link back to a page on my site that I have already published it on. My worry here is i will be penalised for duplicate content.

Thanks for any advice.