Excellent as always! Thank you so very much, SoothingDave, for pointing that out.
"The idea is it stops people trying to switch lanes to overtake and it smooths the traffic flow, everybody carries on travelling at a lower speed," he said.
More: BBC News - Variable speed limit starts on M4 near Newport
The pot is on a wheel, where Paula applies water, and smoothes out the imperfections known as belly bands. A sponge on a stick is used to smooth the inside of the pot.
More: BBC - Behind The Scenes at Moorcroft 2 - the sponger
I think e is an optional?
Smooth and soothe are synonyms for each other, aren't they?
The Free Dictionary; v. smoothed, smooth·ing, smoothes
3. To soothe or tranquilize; make calm.
More: smooths - definition of smooths by the Free Online Dictionary, Thesaurus and Encyclopedia.