oiling too much will cause your board to leak oil, but uneven oiling will be easy to fix. You will clearly see dry spots if they dont get enough oil.... just add a bit more to those areas as needed. Its really not too difficult.
For what it's worth, it's likely to last longer with feet than without. I've beat the crap out of a couple of them for 4 years now with no visible signs of real wear affecting longevity. Of course, you can see they have been used, but I don't think I've lost any significant life from them yet. Boards without feet are much more likely to warp from moisture problems, and that would likely cause more of a problem with the longevity of the board than normal use.
i am definitely not saying its practical, but there are some who have taken SEM pictures of their edges and you would be surprised by the results. Either way, whether one cuts cells or not, is irrelevant. One can clearly see the difference in results of a highly finished edge versus a not as highly finished edge in the finished product. This is a function of blade geometry, edge refinement, scratch pattern and size, as well as cutting technique.
For what its worth, there are some people out there using 1 micron and even sub-micron abrasives on their edges.... that can put their edges firmly within the range of cell size... http://en.wikibooks.org/wiki/Cell_Biology/Introduction/Cell_size
Its worth noting that i'm currently in Japan and wont be back in the states until november 12th when i return to work. That being said, the website is still active and shipping. I just cant sharpen for you until i return.