When I removed my kitchen tile & extra OSB layer (pass. side) I was concerned because my rollers would no longer make contact with the floor. Now I am talking about the rollers that are located inside/under the cabinets so whether that makes a difference you'll have to decide. However when I talked to Cass-Hudson the manufacture of the rollers, who seemed to be knowledgeable about the slide system. They indicated that the rollers were more meant as a guide and that the bulk of the weight was carried by the gear system. I did end up re-welding my rollers for they would make contact but I agree, if your slide is working fine I'd leave it alone.
"weekend tailgater" 2003 Fleetwood Revolution 40C, 2Vino Scooters hitch rack or H-D FLSTC & XL1200 So. Ga. Cargo Enclsd Trailer-Prodigy wireless brake controller