30a spoolgun vs. pushpull python

[chiliuno]

i ordered a millermatic 350p (with pulse) today, it should be here on fri. latest. with any luck, my wife will go into labor fri. night, have the baby early sat. morning, and i can sneak the new welder into my garage without getting busted and having to buy ALOT of jewelry .
anyhow, i was going to order the python like brand x suggested, but i realized something right before i did- it doesn't take its own spool, so that means i'd be changing the wire every time i went back and forth between aluminum and steel. i like the "gun on demand" idea, and i'd like to be able to pick up either gun and just start welding without any fuss- what's the best aluminum gun i can do that with, and what are the downsides to using it vs. the python?
also, being that one uses 100% argon for aluminum and 75/25 argon/CO2 for steel, is there a way to include both bottles and have two regulators mounted on the machine? how is this typically handled?
thanks!

[Brand X]

i ordered a millermatic 350p (with pulse) today, it should be here on fri. latest. with any luck, my wife will go into labor fri. night, have the baby early sat. morning, and i can sneak the new welder into my garage without getting busted and having to buy ALOT of jewelry .
anyhow, i was going to order the python like brand x suggested, but i realized something right before i did- it doesn't take its own spool, so that means i'd be changing the wire every time i went back and forth between aluminum and steel. i like the "gun on demand" idea, and i'd like to be able to pick up either gun and just start welding without any fuss- what's the best aluminum gun i can do that with, and what are the downsides to using it vs. the python?
also, being that one uses 100% argon for aluminum and 75/25 argon/CO2 for steel, is there a way to include both bottles and have two regulators mounted on the machine? how is this typically handled?
thanks!

The Miller spoolgun would be the one you want. The python feels much better in the hand and it's much cheaper to use large spools of wire. The twin bottles/regulators is a good way to go. I would run 85/15 gas for short-arc/ pulse/ spray Steel and a 100% argon bottle.

[patrickmcveigh]

I think the 350 series can get a new set of running gear that includes space for 2 cylinders as an option. Since it's gun on demand, that should mean it already has 2 gas ports in the back, so you'd just plug them in and away you go with the spoolgun.