I'm glad to hear your set up is working for you.
I'll try and answer a few of the questions from your post.
It does make sense that it was a little hard to compress when installing it. There's 200 psi in there.
No you don't need a special tool to release the nitrogen. It's a standard schraeder valve.
Many, but not all, Dodges do have a tendency to pull right. Drive down a crowned road and it may be worse. Also, when adding bigger tires, the problem will be amplified (bigger tires = bigger footprint). There's a reason the Dodge engineers designed the steering dampener the way they did. They just used a lower quality dampener that doesn't work as well. I'm guessing that Dodge engineers have a bigger R&D budget and most aftermarket suspension companies.
The dual steering stabilizers out there are an emulsion type shock that are actually deigned to work in a vertical position. They ARE different than the KORE set up. They will provide equal pressure as you say, but will work differently than a single IFP design.
That's great that Defiant will sell you one with a lower PSI, unfortunately there is no way of knowing whether it will be too much, or too little. KORE does it the other way. There's is set up based on extensive racing and testing data, as well as customer and distributor feedback. Most customers we've sold these to are extremely pleased with how they work.
There's no perfect solution for every truck. That is the entire purpose of adjustability.
On a side note, if KORE's design is so wrong, why are two other companies offering a similar product????
Have a great day!