setting up HH190 as a second MIG unit

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i just bought a HH190 to get a little more power for my hobbyist welding projects.  i just  have set up  the smaller lincoln weld pak 100 mig set up with .025 L56 wire.  i figure this will just be dedicated to sheetmetal projects and will share the tank with the HH190 and i want to set the HH190 up for larger stock.  i have  half a 2lb roll of the .030  L56  wire left so i figure i will try this in the HH190.  this will probably be gone soon since i will be playing alot with the HH190.  once this is gone i was thinking of putting .035 wire in the unit.  what is everyone else doing? and is there a difference between the hobart wire and the L56 wire?  i have over15 yrs of using the L56 and have no  complaints with it all but i am always ready to try something new.   thks bobbobs77vet/37ford4drEastwood digital TIG200HH190Lincoln Invertec 155sLincoln weldpak 100sears/craftsman (lincoln) 50a 240v buzz boxO/A rig Harris gaugesnexion cut 50 dxchicago electric (HF) 240v spot welder