Despite trending to Auburn for a majority of the spring, Elba (Ala.) four-star running back Alvin Henderson committed to Penn State on April 11. James Franklin and the Nittany Lions pulled off an impressive win, plucking the top-10 tailback from an SEC program in his home state. The challenge for PSU now, however, is keeping Henderson pledged until the time comes to sign. Last weekend, Henderson was back on The Plains, visiting Auburn for the first time since his decision in April. The Tigers are going nowhere and have kept their foot on the gas in his recruitment. Auburn insider Jeffrey Lee i…