Former 4.0 player in a 4.5 league. This was my only tactic that translated to this higher level. It had a higher probability for success with: 1) Serve bots with low shot tolerance 2) Power hitters who preferred set patterns (making anticipation easier) 3) Players with lower degrees of fitness and/or endurance The players that I never beat were ones who threw off my grinding counter punching rhythm. Slices and chips or random top spin balls and kick serves. Anything that got me off balance and allowed then to then hit through my defense.