Hi scotoma,
One of the things that has helped me was ditching the WT's interpretive rendering and take on Rev 1:10. The rendering that you quoted moves the verb from its original position in the greek text. If you look in an interlinear you will see that what John "came to be" was "inspired" (literally, "in the spirit"). It was "on the Lord's day" when this took place. Rev 4:2 has a structure very similar to Rev 1:10. The NWT renders Rev 4:2 as the greek text has it. But they alter Rev 1:10 to fit their theological understanding, which is based on their 1914 chronology.
The effect of the WT's rendering is to compress all of the prophecy in Revelation into a much smaller time frame. Imagine taking a digital picture and resizing the width only to a much smaller size. It would create a very distorted image. We had a poster named ex-gilead-missionary (not sure if I got that exactly right) who posted about this a few years ago.
At any rate, here is a little gift for you for your years of effort.