Replica swords

[Urselius]

I collect military swords, particularly those of the 17th century and Napoleonic periods, and I have noted how poor modern reproductions of these swords are. They tend to be heavier in general, feel leaden in the hand and are point heavy due to not having adequate distal taper to the blade. As someone familiar with real swords, albeit post Renaissance, the reproductions of Roman swords I have handled have felt even worse. My question is: were Roman swords really as thick bladed (in both dimensions) and clumsy as their reproductions would suggest?