Method 1 seems more simple to understand and implement. However, I do really like your method 2.
However, 3 issues I don't think you covered that I would like to address.
- This is a lot more complicated than changing the variable from 13 to 4 weeks. It would take more time. I agree though, such a change shouldn't be rushed. This is populism and a fundamental change to Steem.
- A main issue with the proposal is a security risk. If it isn't changed, some people may just want a 13-week lockdown ability to avoid losing 25% of Steem if hacked.
- You mentioned SPS, maybe call it Steem Dao as some aren't familiar with the meaning SPS, at least you recognize this is a very important 13-week aspect.