I'm pretty much flipped on your percentages, holding lots of ETC too instead of ETH. I do put a lot of weight on sticking with original vision.

Also the open-source practice of making a series of small changes and continually pushing them out for testing/use makes a lot more sense.
This BIP series seems a bit too much to commit. And irreversibility isn't good. No software rollback?
And the motivation behind it is ah, a bit murky shall we say...as are the root motivators.