The extra cost to the backstop coming from steel core ammo was verified to be a MAXIMUM of $30,000 every 15 years or $2000 a year, assuming that without steel core, the backstop wouldn't require maintenance ever. Annual dues from steel core users were to the tune of $30,000 based on the MOST conservative estimate of the numbers, so 14 years would have been gravy. Adding $20 to the dues for a steel core endorsement sticker would have been another solution, acceptable to everyone and it would have even brought a few bucks' extra revenue to the club. Certain interests would have been crying about the raging infernos caused by the sparks from steel core ammo, had there ever been one in the history of the club.