I'm ok with as low as 4 weeks but not lower. There is certainly a lot of people who will not power up (or powers up less) due to the large risk of a 13-week power down. On the other hand, it will encourage more powering down and dumping. No one knows which will be more common.
With the changes to curation, we have already seen more powering up.
I'm not going to vote the silly proposal though.
Yeah i think 4 weeks is a sweet spot that covers all bases. Sure go ahead and vote, doesn't seem you have yet. If witnesses decide they want to set dpoll as the standard for future voting then can use that in future, this is already done so no sense in duplicating on dpoll.
I don't think SPS should be used for polling 😕