Google "Froggy's style", look at some of the groups he's shooting. Don't wrap you thumb over the stock and float your little finger. Position your thumb behind the safety-this keeps you from torquing the gun as you pull the trigger. Break the trigger using just the tip of your index finger-this will make the trigger weight seem much lighter (especially if you are used to putting a lot of your finger across your trigger). This method has really helped me and several of the shooters that I'm around. Your opinion may not be the same but you won't shoot better groups than he does.
Several years back I stopped wrapping my thumb and like it better. Don't know if it's better or worse, but I prefer it now.
