i have always used scotch tape to seal the refill holes for my 2200
refillable carts from MIS.
if one was to use the plugs supplied, how are you to remove them to
refill??? that is why i have been using the tape.
would i get better performance from the carts if i used the plugs?
the tape "seems" to work fine, but i haven't done any type of
comparison.
thanks
evan