Dean Kilbryde looks ahead to the best of Friday's action and pinpoints two runner worth following at Chepstow and Sandown. 18:26 CHEPSTOW Prefer The Sister arrives here in top form, winning her last two with Mason Paetel in the saddle for both, and with her due to go up 9lbs in the near future she can strike again and notch the hat-trick before that rise takes effect. On Key carries a 5lbs penalty for victory on the all-weather last time out, his sole career victory to date,