rally point - yes, 3x21 - no Rally-piont system is better than traditional one, at least in controlling playing time. But 3x21 is not good. I think the BWF should use 5x15 (Individual) /3x15 (Team), and the decisive game, I think BWF should use 11 points, the reason is as follows: 1) more like traditional point system; 2) adding more time for advertesment; and 3) in favor of controlling playing time for team event and Qualification. In 3x21: max - [2:1] - 21:19, 19:21 and 21:19 - 120 rallies, 60 minutes; In 5x15: max - [3:2] - 15:13, 13:15, 15:13, 13:15 and 11:9 - 132 rallies, 66 minutes [individual]; In 3x15: max - [2:1] - 15:13, 13:15 and 11:9 - 76 rallies 38 minutes [team]; In 3x21: min - [2:0] - 21:0 and 21:0 - 42 rallies, 21 minutes; In 5x15: min - [3:0] - 15:0, 15:0 and 15:0 - 45 rallies, 22.5 minutes [individual]; In 3x15: min - [2:0] - 15:0 and 15:0 - 30 rallies, 15 minutes [team]; In 3x21 average 81 rallies, 40.5 minutes; In 5x15 average 88.5 rallies, 44.25 minutes [individual]; In 3x15 average 53 rallies, 26.5 minutes [team]. If a tide comes to 13:13/14:14, then the Player/pair who came to 13/14 points firstly can choose going on or adding 5/3 more points. And in the decisive tie, if the tide comes to 9:9/10:10, then the Player/pair who came to 9/10 points firstly can choose going on or adding 3/2 more points. The BWF should use 5x15 for the individual event and 3x15 for the team event/ Qualification Individual. If the IBF uses 3x15 points. The Sudirman Cup will spend no more than 3 hours, e.g. XD 3x15 about 35 minutes; MS 3x15 about 35 minutes; WS 3x15 about 35 minutes; MD 3x15 about 35 minutes; WD 3x15 about 35 minutes; total about 3 hours (max). As for T&UC, I think the IBF should use troditional format - best of 9, and every set use 3x15, and two Cups will spend no more than 5 hours respectively, e.g. singles 3x15 about 35 minutes; doubles 3x15 about 35 minutes; singles 3x15 about 35 minutes; doubles 3x15 about 35 minutes; singles 3x15 about 35 minutes; doubles 3x15 about 35 minutes; singles 3x15 about 35 minutes; doubles 3x15 about 35 minutes; singles 3x15 about 35 minutes; total about 5 hours (max). The play order for two cups should be as follows: If: Team A: singles player A, B, and C doubles a and b Team B: singles player X, Y, and Z doubles x and y the order is as follows: S A-X D a-x S B-Y D b-y S C-Z D a-y S A-Y D b-x S B-X