You could change them to the Polyurethane Mount Kit from Vreeland's. A little bit expensive but I don't think you'll ever have to change them again.
'02 VRSCA a.k.a. "No Wife", '05 VRSCSE a.k.a. "No Kids", '07 VRSCX a.k.a. "No Girlfriend" , '09 VRSCAW a.k.a "September Project (The Turbo One)"
'03 VRSCA (now next project), '05 VRSCA (also for parts), '14 VRSCDX (I'm NOT hoarding parts)
You know they are just like potato chips, you can't have just one.