Can't seem to get the dime look on TIG mild steel...

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I can't seem to be able to get the nice dime stacking effect when doing TIG on mild steel. I can get it good on aluminum.  I have my machine(s250?) at 75a, dcen, 5 on bal, 50 on freq.  The material I think is 1/8 or less square tube.  It seems just to make a nice smooth caulk like finish instead of nice dimes.  Should I be backing off the heat with each step forward to allow the ledge to form or something?  Whats the secret to this?Thanks
Reply:What type and diameter filler are you using? Someting I recently learned, due to running out of 3/32 filler and having 1/8 instock. You can run a hotter puddle and when introducing the filler, which acts as a heat sink, larger fillier will give a more defined, stack of dimes look.Miller TrailBlazer 251Miller HF-250-1Miller MaxStar 150 STLHyperTherm PowerMax 380 plasmaLincoln PowerMig 180Millermatic 252Miller Diversion 180
Reply:Whats the problem with that? Try burning close and then backing up the tungsten and adding your filler at the same time, just a bit. And what balance, you on DCHTP Invertig 201Lincoln Idealarc SP250Miller 180 AC StickBy farmall:They should have held the seagull closer to the work, squeezing evenly for best deposition.
Reply:Originally Posted by fordmanWhats the problem with that? Try burning close and then backing up the tungsten and adding your filler at the same time, just a bit. And what balance, you on DC
Reply:I like the smooth look myself, maybe just because that's how all my welds came out at the start.  I've recently found that I get more 'dime' with faster travel speeds ( and high frequency dipping ).  Moving too slow allows the heat to smooth out your nice dimes, at least, I think that's what happens.__David Hillman