As Sk8man stated earlier it's not only the strength/quality of the rod holder insert, but the integrity of the gunwale itself. I've run gimbal mounts for my riggers for 12 years now using 12 lb weights with no issues in my Pursuit. I've been on other boats using same setup and the whole gunwale flexs with the rigger. Not good long term. Big Johns are also a good choice because the arms flex with weight, taking the strain off the gunwale.IMO