I must be one lucky some beach.

No other way to explain it.

Needed 4 inches off my driveline so I used an angle grinder to cut away the weld and separate the yoke from the tube.
Then I cut the line shorter with a metal cutting wheeled chop saw and smoothed out the surfaces and cleaned up the area for the new weld to reassemble it in phase with the other end yoke and used a straight edge multiple times around the driveline to estimate center and true while giving it the occasional tap with a hammer here and there as I tack welded spots around the weld area.
Once I was satisfied that it was the best I could get it I went ahead and put a bead all the way around it filling the gap between the to pieces, then hit it with a flap disc (metal sanding and polishing wheel) to where you couldn't see where the weld was afterwards trying to stay level with the tube.
Figured if I could drive to a driveline shop I would be good with it till I could get it there for balancing.

NO FLIPPIN WAY!!!???
The car was on stands and when I put it in gear I didn't even hear or feel it turning it was so smooth.
Smoother than it was after paying a "Race Shop" 140 bucks to balance it because of a vibration between 35-65 going away after about 70.
Couldn't even tell it was there all the way up to higher 3'rd.
Even thought it was in third gear and I could hear and feel the wheels turning I STILL had to get out and look under the car.:D
Heck I still can believe it, so I bought a lottery ticket. :D

I think a person could try that again 100 times and still not ever get it close to no vibration.