Volatile markets: Wheat values generally dropped $1 to $4 per tonne in the November CWB Pool Return Outlook (PRO). The exception is No. 1 CWRS 14.5, No. 1 CWSWS and feed wheat, which have all increased slightly from October. Durum is up between $1 and $6 per tonne. Malting barley is down $7. The board