Derek, that base is very similar except mine has 4 small holes anchoring it down. Moving the base over a bit and not uncovering the existing hole would only weaken the floor more and I doubt the base would cover both holes. Looks like my options are to plug the existing 3/4" hole and relocate the base to a new area or try the metal anchors. Getting the base tight again is only half the battle. Slightly larger screws would possibly tighten the base temporarily but I want it to stay tight. I'll check with someone that sells these bases locally to see if they have more with larger plates. Keep the ideas coming....and thanks.