I think I found some errors in the Melee 1.0 Hitboxes spreadsheet, which Kadano links in his Perfect Marth thread and credits to you. The errors are in the WBK column. Some, but not all, of the the calculations seems to be wrong, e.g. Fox's dair or Falcon's Jab. Not only do they seem absurdly high, but they don't agree with MasterHand. I thought you'd like to know.