If they are based on waist rather than made to measure the seat and pleating measurements will be based on an average and therefore more liable for this problem.
Yes pressing helps. 
[B][COLOR="Red"][SIZE="1"]Reverend Earl Trefor the Sublunary of Kesslington under Ox, Venerable Lord Trefor the Unhyphenated of Much Bottom, Sir Trefor the Corpulent of Leighton in the Bucket, Viscount Mcclef the Portable of Kirkby Overblow.
Cymru, Yr Alban, Iwerddon, Cernyw, Ynys Manau a Lydaw am byth! Yng Nghiltiau Ynghyd!
(Wales, Scotland, Ireland, Cornwall, Isle of Man and Brittany forever - united in the Kilts!)[/SIZE][/COLOR][/B]
