Here are some videos about badminton hitting combinations.
For clarity I split this topic into:
Badminton Training Videos
Ttraining videos with my students
Stringing racketsDiverse stringselection
Racket dealsUsed or repaired badmintonrackets
Instructions to customize racket balance.
Repairing Broken Rackets
Different methods for repairing broken racket frames and grips.
Badminton Fishing Rod
Instruction for Badminton Fishing Rod