You know, I think I had that on my To Do List (along with ledge attack, as well as Get-Up prone/supine attacks). Here are some quick notes on the data:
Standing Grab
Start-up: 1 - 5
Hits: 6 - 7
Dashing Grab
Start-up: 1 - 9
Hits: 10 - 11
Pivot Grab
Start-up: 1 - 9
Hits: 10 - 11
Pummel
Start-up: 1 - 8
Hits: 9
Damage: 1%
I would put up some snapshots of the hitboxes, but I lost the .pac file that was created to get Kirby's hitboxes to light up. I also do not remember where I originally found it since it was so long ago. :\
Standing Grab
Start-up: 1 - 5
Hits: 6 - 7
Dashing Grab
Start-up: 1 - 9
Hits: 10 - 11
Pivot Grab
Start-up: 1 - 9
Hits: 10 - 11
Pummel
Start-up: 1 - 8
Hits: 9
Damage: 1%
I would put up some snapshots of the hitboxes, but I lost the .pac file that was created to get Kirby's hitboxes to light up. I also do not remember where I originally found it since it was so long ago. :\