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Hi Allan!
I have to agree with Lawrence on this... When it comes to flux core, there's a correct technique to use when weaving is allowed, and there's an incorrect way also. In other words, always weave ahead of the solidified slag and never over it, otherwise you will end up with slag inclusions, and this should only be used in out of position deposits. There is no logical reason to weave in the flat or horizontal position so long as your wire placement is correct, your parameters are correct, and your travel speed is correct & consistent - period!
I remember one time, many moons ago - I was working for a company that were repairing and refitting the infamous Grumman buses... The first thing I noticed was the welders were as Larry phrased it, "Whipping" their GMAW spray deposits using .035 wire (I forgot the AWS classification, It was around 25 years ago!) in any position but noticably in the vertical up position!!!
The first thing I asked was why were'nt they using a GMAW -P otherwise known as a pulsed system instead, and I was told that their welders could pulse their welds manually... "Well something does'nt "Jive" here" was my response to the supervisor, and he told me straight out: "You either learn how to do it the way they want you to or else you do'nt stay on the job!!!"
At the time I was desparate for a job in the New York Metro area so I welded to their technique!!! Low and behold, they were running short of GTAW welders so they asked me if I had any experience with TIG... I said: "Does a bear crap in the woods???" They looked at me cross eyed for a second then followed by stating to me: "Son! If you can show us that you can TIG, we'll even give you your own machine, and you'll be doing most of the TIG repairs around here, and you'll also weld the stainless steel joints close, and personal to the gas tanks in the buses."
This is one of many stories I have that involves some parts of my start in welding, and because there are so many parts, it's one of the reasons why I have'nt as of yet contributed to your thread about how one started in welding... So I hope you can be patient, and wait just a little longer for me to contribute to that excellent thread.
I have more to talk about this particular job and yet, I do'nt have the time to complete it because, I have to get ready to travel to Houston tomorrow so, I'll have to end it here. When I get back, I'll finish it then. ;)
Respectfully,
Henry