Well, I forgot how damn compact my setup is, so the screenshots may not help, so I'll just describe how I have things set up.
http://imgur.com/a/OzJtJ
[E1][R1][R2][E2]
Extractor 1 (E1) processes stages 1 and 4 via gas turbine. It has a 2x1 gearbox set to speed, since it only needs 512 torque. Router 1 is set to pull from slot 1 with a Machine Filter set to "Extractor" and "Near". That "near" is important! It also has a speed and bandwith upgrade. It sends the dusts into Router 2 via an Ejector upgrade. Router 2 is similarly set to insert into slot 1 with a Machine Filter (again, important!). Router 2 may actually be replaceable with a itemduct with minimal speed loss, but I had made the router before realizing that. Extractor 3 processes stages 2 and 3 with the help of a microturbine hooked up to a 16x1 gearbox set to speed. Yes, this is an insane amount of speed. I've found that sometimes the limiting factor actually seems to be the aqueous accumulator pumping water into it. Yeah. Router 3 sits on top of Extractor 2 and extracts from slot 3 using another MF set to Extractor/Near. It pumps the solution back into Extractor 1 via itemducts.
To the left of my setup, you can see the furnace set up with a friction heater and a gas turbine. Strictly necessary? No, but when you're processing this much already, might as well go full overkill. That chest is there just for overflow. It keeps the pipes from backing up, so processing continues.
It does stacks in seconds, and typically blows through my mining hauls in a minute or two at most. IC2 overclockers ain't nothin'.
Let me know if you need more info or anything reworded.
Edit: Also, I've had 0 crashes with this so far, so it seems to be stable.
http://imgur.com/a/OzJtJ
[E1][R1][R2][E2]
Extractor 1 (E1) processes stages 1 and 4 via gas turbine. It has a 2x1 gearbox set to speed, since it only needs 512 torque. Router 1 is set to pull from slot 1 with a Machine Filter set to "Extractor" and "Near". That "near" is important! It also has a speed and bandwith upgrade. It sends the dusts into Router 2 via an Ejector upgrade. Router 2 is similarly set to insert into slot 1 with a Machine Filter (again, important!). Router 2 may actually be replaceable with a itemduct with minimal speed loss, but I had made the router before realizing that. Extractor 3 processes stages 2 and 3 with the help of a microturbine hooked up to a 16x1 gearbox set to speed. Yes, this is an insane amount of speed. I've found that sometimes the limiting factor actually seems to be the aqueous accumulator pumping water into it. Yeah. Router 3 sits on top of Extractor 2 and extracts from slot 3 using another MF set to Extractor/Near. It pumps the solution back into Extractor 1 via itemducts.
To the left of my setup, you can see the furnace set up with a friction heater and a gas turbine. Strictly necessary? No, but when you're processing this much already, might as well go full overkill. That chest is there just for overflow. It keeps the pipes from backing up, so processing continues.
It does stacks in seconds, and typically blows through my mining hauls in a minute or two at most. IC2 overclockers ain't nothin'.
Let me know if you need more info or anything reworded.
Edit: Also, I've had 0 crashes with this so far, so it seems to be stable.