I sympathize with Bulgarian coach Diana Koleva (see internet: http://www.cbca.cc/to.htm ) and propose for discussion and experiment "The Modified Scoring System for 3 games to 15 points".
In the Modified Scoring System for 3 games to 15 points all Laws of Badminton remain unchanged exept for the Laws mentioned below:
 
7.SCORING SYSTEM (Amend Law 7.6 only)
 
7.6 The serving end or receiving end can add a point to its score if it is the winner in a rally (see Law 10.3 or 11.4).
 
10. SINGLES (Amend Law 10.3.2 only)
 
10.3.2 If the server makes a "fault" or the shuttle ceases to be in play because it touches the surface of the court inside the server's court; the receiving side scores a point, the server loses the right to continue serving and receiver then becomes the server.
 
11. DOUBLES (Amend Laws 11.1, 11.4.2 and 11.7 only)
 
11.1 At the start of a game the service shall be delivered from right service court; then, when a side gains the right to serve, the service shall be delivered in accordanse with Laws 11.5.
 
11.4.2 If the serving side makes a "fault" or the shuttle ceases to be in play because it touches the surface of the court inside the serving side's court; the receiving side scores a point, the server loses the right to continue serving and receiving side then becomes the serving side.
 
11.7 In any game, the right to serve passes consecutivelly from initial server to the initial receiver, then to initial server's partner, then to intial receiver's partner, then to initial server and so on.
 
Best regards.
Nikolay Teryokhin, research engineer of GosNIIAS, amateur of badminton, Moscow, Russia.
E-Mail: neterehin@n21lab.gosniias.msk.ru.