Subframe connectors for a driver/cruiser, necessary to weld to floor?

I have installed several sets of frame connectors. I do have experience with floor welded vs end welded too. I installed the USCartools weld to floor connectors in my 64 Barracuda. Shortly after completing that job a friend wanted connectors in his 64 Barracuda. We fabricated those from 2x3 tubing and they were only welded at the ends. If you were to ride in both cars blindfolded I do not think you could tell the difference.
You would however, notice a before installation and after as soon as you close the door.