Remember, the SH isn't a "just in case" provision. It was an amendment to the plan to provide it. Failure to do so results in an operational failure.
If you want somewhat of a just in case provision, you could go with a wait and see (some times called contingent or SH with follow-up) non-elective. This way, you could do mid-year testing, and if you are passing handily, you could just send out the "we're not gonna do SH this year" notice.