increase in kappa free light chains and in ratio with lambda Lt chains

I was diagnosed with MGUS 6 1/2 years ago. Recently the kappa free light chains have increased a fair amount. The monoclonal Band #1 ELP has gone up to .4, and the ratio of Kappa to lambda was 2.62, which doesn't sound very high to me, but both were termed "high". Is this worrisome or not?