At my advanced age, if I were to go back in I'd go for broke, knowing what I know now:
I'd turn in 20-35 hours a month, whether I actually did those number of hours or not.
I'd actually go door to door once in a while and try to have adult conversations with people interested in being JWs, but I'd let them talk themselves out of it after I told them what it was really like being a JW.
At the Kingdom Hall, I'd be very humble in a very haughty and superior manner.
I'd volunteer for any leadership or service position to get myself nominated as a elder as soon as possible.
With what I know now, I'm sure that I could fake being a "more dedicated JW" - certainly deserving of an overseer position.
I can give a decent speech when I have to - even on an impromptu basis. I'm sure that I could handle any assigned public talks.
After a couple of years, I'd partake of the emblems, so everyone would think that I was "anointed." This would most certainly put me in position for a position of some authority within a couple of years.
At times I would be exceptionally loving and understanding - and friendly to the elders and their wives. But I'd tend to be stern with the younger and newer members of the congregation.
If you know how to play the game - you can fool almost anyone. After all, that's what 90% of the elders and overseers are doing now. Who knows, at my age and being one of the "anointed" - I might even get appointed to the GB sometime before I die.