SEPM 12.1.6 MP6 and SQL 2014 SP1 CU7?

This may be too specific of a question, but I thought I'd give it a shot anyway?

The release notes for SEPM 12.1.6.6 state that SQL 2014 SP1 is supported, and while I'd like to take the SQL server to 2014 SP2, (based on the release notes) I'm concerned that something will break. As a baby step, I was wondering if any one had tried installing SQL 2014 SP1 CU7 while still running 12.1.6.6 on their SEPM?

I realize that 12.1.6.7 supports SQL 2014 SP2, but I'm not ready to make that jump yet.

Thanks, Mike.