Ya, Share Buybacks at $20+ was a mistake. Even buying back at $13 barely makes it over "break-even", adding only about $0.85 cent of "value" per share bought back, and that's towards the total value not per share value on remaining shares.
On P/E and EPS and potential EPS.... SURE, one could say at that time the shares were undervalued at $20+...... but that's in view as an "INVESTMENT" NOT for BUYBACKS.
Currently it's a Screaming BUY based on P/E, EPS, Balance Sheet, Yield as an INVESTMENT but not so much for Buybacks, it's just a BUY for buybacks at current prices, it barely breaks-even.
All just my opinion/view/thinking..... could be out to lunch but don't think so, and nobody has "corrected" me to tell me how wrong I am if I am, so until then, I think my thinking is correct.