Many things appear simple and easy when they are designed.... The actual assembly and operation is where the proof comes in. Can't even began to tell you how many great ideas I have had that in actual application turned out to be far from ideal. The trial and error based on a solid design is what produces working combinations, or shows their inherent flaws. It's great to experiment and try new combinations, but trust me, they never go together quite as easy or work quite as well with the first turn of the key as they should.......