That’s good news!
May I ask what your FLCs were initially, and what they are now?
I also have MGUS with very low/unquantifiable M protein (4 years now) but my lambda FLCs have fluctuated between 4-5.75 mg/dl ( I think are the units).
The kappa has stayed with in normal range for the most part.
I also have a biclonal mgus apparently.
Go yearly now and my oncologist isn’t concerned. He also thought the FLC elevation isn’t related to mgus. 🤷🏻‍♀️

But also doesn’t know what that would be either. Doing well otherwise.