Shelf Reliance - "The Plenty 72" Food Rotation System

We bought this about 6 years ago from Costco, and it was relatively easy to set up, although I did have to cut a board to make a top shelf. We had a custom closet made 41" wide by 29" deep with an opening 81" high. We probably should have made it 1" deeper and 2" wider to give the bi-fold doors sufficient space around the edges so they would not touch or rub against anything and to allow the cans on the edges to pull straight out. We do like the rotation system, but found that you only get 7 of the # 10 cans on a rack, and since we use #10 cans so infrequently and they have such a variety of things in them we might as well put them on the top shelf and just stack them. What we really use is the small can racks with 15 cans per rack. With 7 columns per row, each row will hold 105 cans. that would be 42 varieties of cans with a 630 can capacity. With # 10 cans on the top shelf (that I had to make), perhaps stacked 2 cans high and 3 cans deep and 4 cans wide, I could still put my 24 #10 cans on this shelf.Although the original purpose of this type of rack is to rotate your stock and use the oldest cans first, I found it is also very useful for creating a shopping list. Just look down the sections and see when you have 3 cans or less left, and go out and buy 12 more. If you eat a lot of food from cans this makes shopping a snap. (Of course it is probably a good idea to get fresh vegetables, refrigerated foods, and other foods too :-).ChallengesMy first disappointment was in getting the 1 row of #10 can size. If we could replace the #10 can holder with two rows of the small can holders we could get 6 useful rows of cans instead of the 4 useful rows and 1 bulky #10 can row. The medium size can row will allow for larger than normal size cans, but will still accommodate the smaller cans too, and since you can not get more than 6 rows in, even if they all were small, it is useful to keep this row.After getting our cans on the shelves, I realized that in some cases I had a one month supply (corn or string beans), and in others I had a 10 years supply (cranberry sauce, and condensed milk), since we like canned vegetables, and only use cranberry sauce and condensed milk for holidays.I thought perhaps it would be OK to mix the cans in a section, such as cranberry sauce and condensed milk as they are about the same size. Of course this ruins your rotation, unless you go to the trouble of finding the can you want then pulling and rotating the other 10 to 14 cans to get back to where you were.Next, I found that for tuna fish cans, small cat food cans, and even the cranberry sauce cans, and condensed milk cans, the width is very critical. Too narrow and the cans have to be pushed, too wide and a can might get off track and fall to another rack and jam up other rows, or be impossible to retrieve without emptying two or more columns of rows below it.I looked at trying to get replacement rows to switch from the #10 can to the smaller can size, but at first the cost was half again as much as I paid for the whole rack, then later when I was willing to pay that much, I could not find an on line location to make such a purchase. I believe the company name has changed, and the names they use, while cute, do not give me the feeling they are anything more than a business run from someones home with an outsourced manufacturing facility. I was hoping it was a built in the USA corporation, so I am very curious about their origins, patents, manufacturing capabilities, and future plans for automation and potential price reduction of their final product.