Which is what I usually go for...if you look for a more purist solution
The mod actively punishes you for a more purist solution through channel management. Generally, if there is a way to get something done that doesn't require a bus, I will do it the other way first. For example:
Circuit production: 1 channel. Attach ME Interface to chest. Use sortable item routing method of preference to move items to the appropriate machines from there. Route results back to the interface.
Ore Refining. One export bus at the ore input place. Output place pipes/ducts/conduits/etc the ingots to the nearest local ME Interface.
Also, I almost NEVER use import buses because almost everything I use has auto-export to proper face, and I just use an interface. Saves on resources that way. Only use an Import Bus if it won't actively push something out.