I think where alot of the questions about the Sephiroth clones and Cloud arise from is WHAT exactly IS a clone. Its not people who were grown in test tubes in the shinra building or whatever. What they did was shower soldiers with Mako (a cheap knock off of Jenova cells as far as the shinra could see). This was seen in the flashback in the basement of the shinra mansion in Disc 3 or late disc 2. If Im not mistaken thats what was done to the black caped men. A succesful cloan was someone who relatively began mumbling about Sephiroth and the reunion. Thats probably why there were so many cloans in Nebelheim. People who were showered with mako (or cloaed) In the basement of the shinra mansion as Cloud and Zack were. So to say Cloud was cloaned isnt exactly right but not exactly wrong either. Its just a misunderstanding of the word cloaned. Thats my theory anyway.