Yes - skip instructing with your CFI and find another way to get/stay current if possible. I, like you, have over 7 years instructing and for many of the reasons already postulated in the responses - I'm pretty sure that you'd find CFI'ing at a large school or mom&pop places quite the different experience. It seems to me that you need two things to ensure your place line. Currency/recency of experience is most important because you won't even be considered for some jobs, and among different jobs that you might have while waiting for one of your choices to call, -121 experience would not hurt - not required - but certainly wouldn't hurt.