** Pub operator Mitchells & Butlers' shares down 4.7pct, bottom of the FTSE 250, after Barclays cuts to"underweight", slashes PT to 220P from 375P
** Barclays concerned much of lfl sales growth is beingachieved by either capex or price rises
** Analysts add although the National Living/Minimum Wageheadwinds have been known some time, co will also face headwindsfrom business rates and higher food price inflation
** Stock weakest on FTSE 350 Travel & Leisure index
** Barclays cuts PT on Greene King and Marston's ; both stocks flat (RM: rahul.b.thomsonreuters.com@reuters.net)