Do you use an office chair?
Some people like to stand at their modeling table, and I guess the rest of us like to sit in a chair.
I have always used a chair. Now after having an office-type chair for 60 years of building I finally put new casters on one.
I used what is called "Skateboard wheel casters"
If I had realized how great these things are I would have done it many years ago.
My chair moves silently like it is floating on air. Little bits of balsa do not stop a wheel and send you into the cabinet.
I love these things.
Measure the stem of your casters carefully, there are at least 3 different sizes.