And as it turns out, is the fastest way to recover solvent from a thick product with minimal residence time and heat.
The physical surface area may be small when compared to a FFE; it is the physical action that brings about increased surface area in our WFE. Just like shaking a cold lighter to get one last flame or a stir bar in a short-path. The physical area inside the lighter did not change, instead the amount of liquid touching the wall did change and more heat was therefore transferred to the colder molecules in the lighter thereby creating pressure. Stirring is a form of activation energy and can be observed with crystallization processes.
Funny thing is, Corkens published values have been dampened down to make it more possible to hit. When calculated, there are many variables to take into account. It is pretty unlikely that typical systems can hit and maintain the requirements so it is fairly unlikely you will experience the published values. Corken is aware of this and have tried to make the numbers manageable for typical end users, yet they still seem difficult to hit.
Our design enables us to take full advantage of maintaining the required conditions indefinitely and therefore its result. What the compressor moves is based on RPM, CFM, inlet/outlet psi, inlet temperature, and gas specific gravity. If you can maintain the conditions, you will maintain the volume.
The easiest way is with our GD1 wiper as we can clean our solvent while we extract, thereby keeping the boiling point down. As you introduce impurities (crude) you also increase the boiling point of the solvent and have to either add more heat or take the crude out of the liquid. This is one of the reasons your recovery rate hits the floor towards the end of a run - as the crude concentrates; more and more heat is needed.
Thus far we have not yet maxed out the recovery rate of our GD1. Previously the hot water heater was the limiting factor; which we have gotten away from.
The only place that can clog is the exit hose but is really simple to clear out. For the most part, the pressure keeps product from crashing completely during operation and it remains fluid until you drain or get too low in pressure.
Should a clog occur and you don’t have the pressure to push it out, just squirt a little solvent in the WFE and let it warm up. Can easily get the pressure you need to clear the line. Alternately, it can be connected back to our system and we can push-pull solvent through the line until clean.
Our systems have a built in CIP function for all sections to enable self-cleaning.
I suspect many will try to follow suit now that we have paved the way. Won’t be the first time its happened. 
It all starts there… The problem is clearly identified: the solution is not what you would think.
That is pretty much what kicked it off. We had made a huge machine that requires an absolute ton of cooling. Chiller cost nearly matches the machine. You solve one problem yet create another. Yeah it can run fast - but now how do you heat and cool it?
…using a compressor to cool a refrigerant, to cool a heat transfer fluid, to cool a refrigerant, ran by a compressor…
Sounds logical right? 
No, we do not run cooling through the corken. You really want the gas to stay vapor in the compressor. Compressing condensed liquid is a fast way to blow your rings.
We actually first released the GD1 three years ago and have since made a couple upgrades. Last year we released our Rotary Basin Miner-Reactor rated to 350psi for use with propane / iso-butane / butane. 
Our exaction process eliminates the need for atomizers, can control the solvent temperature internally, has its own thermal control system to eliminate co2/chillers, can move solvent at rates over 100lbs per minute (Behemoth XL R800), can remove crude while injecting, is a continuous operation design, does not use nitrogen to operate… The list goes on and on.
For every problem there was, I have found a solution and will continue to find solutions for new problems which surface over time: as one solution might create a new problem. It is an inevitable cycle.
It is in the works. We are going to utilize my patented DaVinci Sensor to detect general concentration in our liquid stream via a Beer-Lambert curve and use that data along with my operating procedures to fully automate extraction. It is also a key component in our upcoming development. 
As it stands, one person can operate every machine we make. The Behemoth we suggest 2 guys for loading/unloading socks plus the one driver to minimize the operators workload. Starting out we typically see 2 drivers on the Behemoth until they get the hang of it. Its a big machine and is easy to get overwhelmed if your not used to running the process.