Well the holy grail so far as I'm concerned (and probably I speak for most people) is to have transport pipes/tubes that don't flood the pipe with items when the empty container/inventory can only contain 1 or 1 stack then have the rest bounce back/around the rest of the piping. I guess that's where the RP manager comes in but managers are too expensive to start with and if you have a lot of them then you need to consider blutricity. I really love Managers but to have an intelligent piping system do that would shoot the "drool" factor off the top of the scale.