Fixed income strategy in early retirement

I retired a few months ago with liquid assets that will bridge me until my annuity income and social security kick in three years from now. The rest of my money is in an IRA, that I had in 65% VT/12% BND/10% VTIP/8% TIPS ETF ladder/5% SGOV. I won't be tapping the IRA portfolio at all until 2029, and even then it will be a relatively small amount. I was good with that allocation until this week, when I figured out that I was assuming the 12% BND allocation was worthwhile as a volatility smoother,