SEP 12.1.2 client pointing to a SEP 12.1.1 SEPM?

Will there be any issues if I build some SEP 12.1 RU2 clients and point them back to my SEP 12.1 RU1 SEPM?

We need a month or so of testing of our RU2 SEPM before we roll it up to the production server. But in the mean time, I want to see how the RU2 clients work against the production SEPM.

So again...Will there be any issues if I build some SEP 12.1 RU2 clients and point them back to my SEP 12.1 RU1 SEPM?

Thanks,

-Mike