Primary clearance holder

Hello, i have a ts/sci with fsp eligibility.
I have a full time job with IC contractor that only requires CI polygraph. I also have a part time gig that requires that uses the fsp. I was told by a colleague that i need to have my part time job as my primary clearance holder in scattered castles so i dont lose the full scope. Is this true? I thought as long as I worked a job that required the fsp i would be good regardless of who is the primary.

Would I need to request my FSP job security team to take control of my clearance in SC or what would be the proper process for me to get this done? I just want to keep the FSP active so im good when reinvestigation time comes.

Would appreciate any feedback

No, your FT job is always your primary.

The Clearance and poly are not attached to the job, it’s attached to your security profile.