The only thing that I don't see logical is that the Longsword has less weight and is slower than HBS, how can be possible that a weapon that has more weight has more speed?
This is a good point.
The HBS is slightly more heavy than the LS, yet currently it is faster and does less damage.
Theoretically speaking, a blade with more weight behind it should damage more not less, and possibly swing a bit slower due to the user having to move more weight.
This is a weird inconsistency.
If the HBS were to keep its current weight over the LS, then it should be the higher damaging of the two, and the slower of the two.
If they want to keep the damages and speeds the same as they are now, then they need to make the LS the heavier of the two.