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

I have welded in 2 x 3 tubing for frame connectors for years in lots of Mopars and a few Fords. I have never tried to do the thru floors deal as I have to lay on my old back and do it all. I too have no idea what is the strongest way, but what I do sure makes it stout!!! Makes a REAL difference. But then I have heard some "arm chair engineers" say the car needs to flew some!
Don't know!!
:thumbsup: :BangHead: