Sweet Jesus! 3lbs 9oz?! That is one hell of a heavy sword...
That's always been one of the criticisms of Del Tin. They make nice replicas, except for the fact that they're on the heavy side, and usually don't have enough distal taper.
Having said that, there were some examples of period swords that were also heavy cleavers. Companies that try to get it right, such as Albion or A&A, tend to model their swords after some of the better examples available, but there was a wide spectrum back in the day.
So when it comes to something like this, I think it's best to ask yourself if the weight is OK for you, and whether the replica is good enough for your tastes, at the price-point that is offered.