The severity of your lie will obviously dictate what you are capable of doing. However, a couple of tips that might help from heavy rough around the green…
1. Use your highest lofted club to minimize the amount of release you get
2. Tighter than normal grip pressure to keep the club from moving in your hands as the clubhead travels through the deep grass
3. Use steeper than normal angle of attack in order to keep the hosel from getting caught up in the grass and also to ensure you will get the clubhead under the ball
4. Use more force to combat the heavy grass – “pop it” using a shorter more abrupt follow through
5. The “chunk and run” is also often a good technique from heavy grass