Always feels nice to clear the decks, check off the box, retire an outstanding obligation.
And: 95% convergence? The QSX is not retired; you just released v.2 and called it "QMX+"! This is definitely one for the "success" side of your ledger.
I hope the QMX+ with SSB boosts QRP-Labs into a more comfortable profitability with less stress on the principal. You have found your niche and you have your own quirky audience cheering you on!
72 de Todd W2TEF