a trend-following/momentum strategy only move to inversally correlated bond funds when markets are in a downturn. Therefore, the portfolio would have much lower drawdowns and be in bonds for a shorter period. Many have proven such a strategy will outperform after a few bull/bear cycles. Lower drawdowns and better performance especially in bear markets suggests retirees could safely take withdrawal rates above 4% but is there anyone out there that has put this into practice? thanks!