I run RK so I'm obviously biased. When you talk of parts that didn't impress, which parts? Are you speaking of their joints? If you are, their Monster Pro joints are their latest design. I'm not sure how long they have been out but they replace the older style joints.

I have a set of old joints from Ross that's off of Black Betty that seem pretty beat up. I spoke with RK and they told that me as long as they don't move freely with ease, the joints are still good. I'm talking joints with parts of their innards hanging out. I will replace these eventually with the Monster Pro joints when they do wear out.

I've heard good stuff regarding Metalcloak but I've never seen one of their lifts up close nor currie.

I would choose any of these lifts over AEV any day.