Wondering if any owners of the PowerMTS 251Si have purchased a spool gun to go with it and can confirm that the spool gun wire speed dial does in fact work with this welder. I ordered a 250S just for welding aluminum because I am building a boat this winter and was shipped the newer 251Si, when I hooked up the gun the dial on the spool gun does not control wire speed like it is suppose to on the MTS versions. I was shipped the SM200-MTS spool gun which I have been told works as designed on the MTS 250S but its looking like the gun will not work with the newer 251Si. If anyone has this setup I would appreciate any input you may have. Have not gotten a call back from Everlast.

Thanks
David