Back to writers Instruction This amateur dropped his handicap index by 13. Here's his secret By: Tim Cooke, Top 100 Teacher , Nick Dimengo Instruction Why swinging slowly when you practice can quickly improve your swing By: Tim Cooke, Top 100 Teacher Instruction Stripe your irons with a cack-handed grip By: Tim Cooke, Top 100 Teacher Instruction Short-game magic: Four steps to pitch it close By: Tim Cooke, Top 100 Teacher Instruction How to tackle Harbour Town's iconic 18th hole By: Tim Cooke, Top 100 Teacher