I'd say, Upgrade to v17. Sometime during the v12 convulsion, the ability to extrude a profile along a path was lost. The "Sweep" tool was touted as an improved substitute, but in reality it has always been a sadly underpowered replacement. The situation was not fully rectified until v17, when the "Rail Sweep" tool was endowed with enough muscle to emulate everything the lost path-extrusion tool could ever do, and maybe a bit more.
...Also, in sheet metal design you may also find good use for the bending and unbending tools that appeared after v12.