FSP to CI back to FSP is possible?

Anyone ever do this route? I found a job that only requires a CI poly though I have an FSP. If I work this job for more than 2 years, is it true that I:
A. Will lose my FSP?
B. If so, How easy is it to reactivate it, if at all?

Recruiters are ruthless and truth seems to not necessarily be as important as reaching recruitment goals. I have heard everything from," it will be so fast and easy to reactivate the FSP" to “I will have to start from scratch” to even, “I don’t lose it at all even if I took a role that required neither a CI or an FSP”.

I searched the forums but the closest question I found was: Losing FSP with job that doesn’t require it
And unfortunately, I don’t have an FSO friend I can ask.

Any thoughts? Thanks in advance.