The "heavy" parts are the layer effects on this one. I suggest if you're having trouble merge the effects layers and use a blend mode that suits your skin to show the details. It lessens the CPU load when previewing/editing your skin.
Other than that I would recommend hiding it all away when skinning and only pulling out the skin kit when exporting to jpeg for a preview.
On the matter of software, you're right. We are very conservative and getting stuck in our ways is a habit hidden deep in our evolution. So switching from one application to another and switching around your daily routine is never easy. Sometimes it's worth it, but it's definately a turnaround.