Brandon Jacobs is down to 260 pounds after reporting to spring drills at 275. It's a good sign for Jacobs as he enters his age-30 season. He has to maintain some level of burst to win a short-yardage role in the Niners' backfield. "I feel faster, I feel stronger, I feel like I'm playing with better leverage," Jacobs said Thursday. Regardless, there won't be many carries available for the ex-Giant with Frank Gore, Kendall Hunter and LaMichael James all in the mix.