I spent $40 on maxud's mod for 2 main reasons. The 2nd is actually more important (to me) than the 1st.I am saying "Stock Configuration" as in the vehicle can be easily put back into the stock mode where the VCM will work as factory by removing the resistor from the circuit and putting the factory wiring directly back into the wires for ECT1 by way of high quality bullet connectors (male + female). Sure this is still a modification to the factory wiring (technically) but it will work the same as factory by taking 30 seconds to remove the resistor portion of your modified harness. A set of good connectors don't add enough resistance to the ECT1 circuit to cause the VCM to behave in a way different from factory settings once the resistor is removed.
1 - Absolutely no work on my part. I DIY all sorts of stuff - home, auto, hobbies, etc. - but sometimes it just makes sense to press the PayPal button. It's just not worth my time and effort to pass on a $40 plug-and-play adaptor.
2 - If I want to go back to stock configuration, it's that same 30 second swap but 0 seconds explaining anything to the mechanic. In other words, if the van needs service, there is no need to explain the bullet connectors or spliced wires or add any possible doubt in the mind of the mechanic. (S)he never even knows that it ever existed.
I'm not saying I have any problems with your method, just that pulling the resistor doesn't really return the van to stock configuration. It leaves those connectors which may (or may not) raise questions if the van ever needs service.