Craig,
Yes, you are correct on this, in theory, and I've seen systems like this. But as a practical matter all pipe lengths should be tuned to the same rpm by making all the tubes the same length. You can see the problem with making the 1-6 pipes the same length as the 3-4 set, without being too long. The paired sets should be joined into a 3 - 1 set of pipes too. More conventional systems are probably nearly as good by the time you optimize jetting and cam timing. Don't stop wondering...
