This is a list on which % every character gets dthrow to fair without being able to tech on the ground, and you wont have to regrab before the opponent hits the ground.
It works on fthrow if you does it 2 % earlier on every character (tested close to half the cast and it was always the same pattern)
Damage before downthrow:
Jigglypuff 17%
Squirtle 19%
G&W 19%
Zero suit Samus 20%
Kirby 20%
Metaknight 20%
Olimar 20%
Fox 20%
Falco 20%
Pikachu 20%
Zelda 21%
Shiek 21%
Ike 21%
Peach 22%
Marth 22%
Diddy Kong 23%
Toon Link 23%
Pit 23%
Ice Climber 23%
Ness 23%
Lucas 23%
Sonic 23%
Mario 24%
Luigi 24%
Wolf 24%
Ivysaur 24%
Lucario 24%
Link 25%
Captain Falcon 25%
Yoshi 26%
Wario 26%
Ganondorf 26%
Samus 26%
Robot 26%
Charizard 26%
Dedede 27%
Snake 27%
Donkey Kong 28%
Bowser 29%
This was tested atleast twice on every % on both the % above(techable) and the highest exact % were it´s not techable. Tested in trainingmode against no opponent.
It works on fthrow if you does it 2 % earlier on every character (tested close to half the cast and it was always the same pattern)
Damage before downthrow:
Jigglypuff 17%
Squirtle 19%
G&W 19%
Zero suit Samus 20%
Kirby 20%
Metaknight 20%
Olimar 20%
Fox 20%
Falco 20%
Pikachu 20%
Zelda 21%
Shiek 21%
Ike 21%
Peach 22%
Marth 22%
Diddy Kong 23%
Toon Link 23%
Pit 23%
Ice Climber 23%
Ness 23%
Lucas 23%
Sonic 23%
Mario 24%
Luigi 24%
Wolf 24%
Ivysaur 24%
Lucario 24%
Link 25%
Captain Falcon 25%
Yoshi 26%
Wario 26%
Ganondorf 26%
Samus 26%
Robot 26%
Charizard 26%
Dedede 27%
Snake 27%
Donkey Kong 28%
Bowser 29%
This was tested atleast twice on every % on both the % above(techable) and the highest exact % were it´s not techable. Tested in trainingmode against no opponent.