The key point for the average joe back yard hack is that some of those flux cored wires are NOT suitable for multiple pass welding. When using a limited output 115 volt powered machine having the ability to multiple pass is a must in my opinion so pick a wire type that is suitable for multiple passes (most E71-T11 are suitable for multiple pass welding but they do the lack the seismic approvals. A lot of the -GS and other suffixes are not suitable for multiple pass welding even though they have other benefits).
Of course if you are doing code work then use the proper wire that code specifies. In reality there are not too many people doing code work with a tiny 115 volt wire feed machine (most are using 230 volt minimum, 3 phase, or engine drive welders for code work). And there are absolutely no welders doing any code work with a machine that spits out the wrong AC current for the fundamental design of the weld process being applied. (In other words you could do small code work with your Hobart 140 with the proper wire installed. You can NOT do any code work with the Jobsmart regardless of what wire you put in it).
Not bashing 115 volt machines that output the proper DC current for a wire feeder. I have one and it is a great asset to the welding arsenal when used within its thin metal capaibility.