Joe777>>>yes the flares were coming out with one side kinda dished out>>>
skidmarks>>>Also it is very important to have the end of the tube cut square and debured inside and out.>>>
Yup. Square cut, debur inside & chamfer outside. 3 of the 4 requirements that I've found for making a perfect bubble almost every time.
The 4th? I found that using a tubing cutter carefully to make the tubing cut is critical to avoid an off-center lopsided bubble. A tubing cutter will pinch and reduce the tubing diameter at the cut's face to achieve a tighter fit with the die pin keeping the die better centered in the tubing. Accordingly, I square & deburr the cut sparingly so as not to remove too much of the pinched metal.
I also try to avoid over-tightening the 2nd flare in the flaring tool. Preferring instead to make the all the final compression inside the inverted flare fitting itself for a leak-free connection every time. A flare-nut wrench should be used to get a solid compression in this final step.
Jack E/NJ