This very much depends on what you are wanting to achieve by changing your grip. For example, if you wish to continue using a pistol / pencil size grip then choosing a Pistol 7E (26 or 29) or Snug (24 or 27) will help with your grip alignment and consistency of stroke. If your primary goal is to confidence with shorter length putts, then opt for the Pistol 7E 26 or Snug 24 however if your goal to gain greater control over long distance putts then the slightly wider Pistol 7E 29/32 or Snug 27/30 would be a great option.