[quote=@The World]
<Snipped quote by Webmaster>

"On a plane." The location vectors matter in 4 dimensional space. The overall weight can be exactly the same, you might even be able to keep the air friction the same without it being sharp to reduce it, but where the weight is at, even if the overall is balanced exactly the same, matters. If you have a katana and a two-edged sword that have the same air resistance and the exact same weight, the differences in location of the weight will affect the usage. This is even before adding in the human element of using it.
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Except plane physics apply in three and four dimensional space. Literally nothing changes, and the feeling will be the same.