Welding woes...frustrating!!

If your budget allows I would get a non flux core mig welder I have a mig 175 from eastwood. I run .023 to .025 wire on a 220 outlet. I had a problem when using the thinner wire. It wouldn't feed properly I needed to get a knurled roller. Maybe the machine isn't feeding the wire properly or not at proper tension Just a suggestion
Check your roller, the retaining nut may be too tight,and it wont align with the wire. My esab was giving me fits until i figured out what was wrong. If i tightened the nut, wire wouldnt run in groove and it would slip.
Also, two groove rollers,the number on outside of roller depicts the groove on inside. Hope this makes sense.