Not retired (but close) and currently around 60/40. Once SS starts, I will probably let it drift upwards over time. "Success rate" as defined by prematurely running out of money before running out of life is immaterial to me as I plan to use a variable withdrawal method. With many of the variable withdrawal methods, a higher stock-to-bond ratio generally results in higher average withdrawals, but with more volatility in the withdrawals.
Regardless, adaptability in some form or another would be prudent.
Regardless, adaptability in some form or another would be prudent.