1413 GMT - Investors may want to see more evidence of acceleration in Diageo's top line, analysts at JPMorgan write in a note. The London-listed spirits group set out Thursday a plan to bolster its earnings through cost savings and a return to sustained revenue growth. That will be a relief to shareholders but there is no magic bullet that can ensure sales growth, JPM says. "It may be premature to argue for a rerating here given the pace of top line recovery," the bank says. Shares gain 6.5% to 1,747p.