The latest Court judgment arising from the MF Global UK Ltd ("MF Global") insolvency provides further clarity on how client money entitlements under the FCA's client money rules ("CASS") should be assessed, but is potentially superseded by a key proposal in the FCA's July 2013 Consultation Paper.  In MF Global UK Ltd (No 4) (in special administration); Heis and others v Attestor Value Master Fund LP and another [2013] EWHC 2556 the Court was asked to determine to what extent, an