I waited until the end today i.e. 2:27 or thereabouts and bought into the Ds at 4.94.

If that doesn't represent close to a near-term bottom, then the entire case for the shorts is/was wrong, and it means the uptrend based on low storage will continue, or else the decline in the ng price will be so painfully slow that it won't be worth anyone's time to try and trade anything other than the predictable big moves on Thursdays, and at the contract expiries.