We aren't retired from full-time work yet, but I suppose you could say that our plans include a WR higher than 4% -- but it's hard to pinpoint an exact %, due to several factors.
1) Anticipated stash at "retirement" (defined as quit the full-time work for spouse + me): about $1.35MM
2) Anticipated initial WR: $60-65K/ year. This is approx. 4.5-5%.
3) Both spouse and I have worked enough to receive SS. We are guesstimating SS annual payouts at age 70 at 20K + 24K apiece (guesstimating a reduced % payout for each of us -- I think it is likely underestimating).
Items 1-3 alone get us to around a 95% success rate.
4) Additional influx of $: spouse doesn't want to fully retire, plans on working part time (roughly 1/2 time) for another year or two. I need a little time off from the grind, but may return to a part time gig too. (Cue Internet Retirement Police.) We don't need this $, but this has been one of those items that helps get spouse into the FIRE mindset. She's not entirely convinced that we can really retire this early...
5) Additional influx of $: will sell facepunchy house in another 12-14 years, downsize, invest the excess. Expect around $500K in today's dollars from that. (It's facepunchy, but it's paid off.)
6) Additional influx of $: will likely receive some inheritance from my parents. Not sure how much exactly, as I don't like thinking about this and am not counting on it in any way, but it's probably $200-300K.
When I play with the calculators, items 1-3 + 5 suggest that we could push the initial WR up to 70-80K and have a high probability of success. However, due to the less-certain nature of #5 (amount + timing), I don't want to push it that much. So it's kind of hard to calculate what our real WR % is going to be, as we may not really know the initial WR until many years in the future, when we can look back at the beginning.