Your current balance stands at £171,073 with equity at 57.2 per cent, tracking toward payoff in November 2040—some seven years and eight months ahead of the original contract. The £250 monthly overpayment has already saved £25,663 in interest and accounted for £8,763 of principal reduction, demonstrating solid discipline. However, Sir, the ten-year outlook favours investment: maintaining overpayments and deploying the capital difference into a balanced portfolio would yield £16,041 in gains versus £7,880 in additional interest savings—a meaningful efficiency gap. Your next rate switch arrives July 2027; monitor that inflection point carefully. **Systems nominal: ledger current, projections stable, strategy adjustment recommended.**