I see the machines for alum rated for 1/8.
If I am welding 1/4 alum bar and do one side 1/8 -
weld around on the other side for an 1/8 -
doesn't that equal a one pass 1/4 inch weld on just one side ?
What is the difference structurally or in practical terms ?

dumb question - but seriously.
Thanks, Stu