SAML and Delegated SSO at the same time

Dear Gurus,

We currently have delegated SSO implemented, I want to enable SAML based SSO and run some tests prior to enabling for all of our users. I have sucessfully tested in a sandbox, but want to be careful in production so I dont effect all the users. SFDC admin settings appear to let me have both ebnabled at the same time. Does anyone know if this will cause any issues or am I ok with most users being Delegated and a handful of testers being federated.

Thanks