Using Custom URL Shortener with Sharedaddy

Hello,

I am using a custom url shortener thanks to http://yourls.org.

Is there a way to replace the twitter url used in sharedaddy with my own one?

I.e., when clicking in the twitter botton provided by sharedaddy and the twitter box opens, is it possible to use http://myown.com/ababa instead of http://t.co/ababa??

If not, it would be a great feature for the plugin!

Thanks and regards