Your story is a good example of "fertility isn't required" to get positive results from a reversal. Glad it's helped you on the level you say it has.
I'm not thinking you ejaculate has changed because some fluid is getting through. If fluid was getting through, IMO some sperm would be to.
In your case, I'd put my bet on your ejaculate has gotten better because your nerves aren't irritating your prostate, prostate area, etc anymore.
Not to throw a monkey wrench into your thoughts here, but Dr P did my first reversal at 4 months post vas, and it was a failure to. There was a lot of talk about blockage, etc, etc. Things were different back then, and there were no "old timers" with vast first hand experience either.
I went to Dr Marks a year later, and he got me going no problem. I remember him saying, "you are just a baby in the timeline far as blockage".
I'm sure you know, my redo reversal only lasted about 24-26 months. It might have lasted a whole lot longer if I had went Marks the first time, idk, hard to say one way or another. Every time you have your reversal redone, the success rate drops considerably.
I think your results sound positive far as your recovery, and pain levels go. I'm sure you plan to ride your recovery out indefinitely, and that's what I'd recommend as well.