Great job!
Thanks. It's similar to my dual 110/6 dolly/cart system, which has been incredibly easy to navigate my way through anything. Having a dolly and hand cart in one system solves the problems in using either. The only thing is when I encounter steps. Though the 15/6 isn't all that heavy and I could carry it up some stairs if need be. But sometimes I come across curbs or really bad parking lots, etc. where a dolly won't cut it, so all I have to do is tilt it back and use it as a handcart.
I usually have some band case to put my cabs on, but I can use the cart now as a tiltback stand if need be. Remains to be seen if the cart will rattle at high volumes as I don't have the cab loaded yet. But I did add all the extra bracing per greenboy's suggestion so I don't anticipate much vibration issues.
