I'm considering buying a used HLV-H, a rebuilt one, or a clone. Of the clones, there seem to be two -- one by Sharp and one by Cyclematic. It seems that Babin, South bend, and Eisen sell the Cyclematic, and I've not found any rebadges of the Sharp. How would you compare these two clones, and how would you compare the clones to, let's say, a brand new HLV-H? What am I actually giving up with the clones, besides resale value and the name? They seem to be of extremely high quality, but all these things have deficiencies and I'm curious what they are just so I understand what I'm getting into.