Roger, you nailed it, reviewing my uncalibrated images shows a drift over time aligned with the streaks, not sure quite why that shold be as the shots were autoguided and IIRC there was no reported drift reported in the s'ware....that combined with not enough signal means these shots are not useable. Oh well ...
Bojan - the darks were collected immediately after the imaging run - typically as I pack up so they should be a good match to the lights.
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