Proper Tig Torch Use and Welding Rods

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I have two TIG torches , a wp17v and a wp09v.  The unit I have is a Longevity 185i I use 220 volt its good to 180amps. It is a scratch start  DC TIG and it works pretty good.  I need to know which welding rods for mild steel I can use with both Torches I have a 3/32 gray tip electrode in each TIG with #6 cup seems to be the norm.  I 'm just starting to learn to use the TIG torches and need to purchase welding rods.  I will be working on mild steel 1/8 and less to practice.   I need some suggestions, and comments if possible.  Also and suggestion in settings I was playing around just using the  wp17v torch and I slowly started to melt through a 1/8-1/4 piece of I-Beam at  90-100amps.  Its a DC TIG, only for steel.
Reply:1/16" E 70 tig rod will do what you want. Amps 100-125. Going on the lower end gives you a bit more control as you can speed up or slow down to control the heat a bit easier than running at 125. 115 is a good average for scratch start on 1/8" steel.I've done a ton of posts on the basics we use to teach beginning tig to students and the drills we have them do. REad a bunch of them and that should give you a good starting point..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan