In their first outing without their talisman Bryn Snellgrove, Douglas went down 33-25 away at Dukinfield.
The game was always likely to be a potential banana skin and saw Douglas slip away from the leading pack at the top of South Lancashire/Cheshire Division Two.
They are now fourth, just nine points clear of fifth placed Vagabonds.
Final day to give views on future of sidecar racing
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