Yes. Some Armorgroup trades go via PlusMarket rather than via LSE - in which case they don't get picked up by advfn feed. For example, last five Armorgroup trades on PLUS (I didn't look at earlier ones - maybe someone else can)
Date ....... Time . Price Volume Type ..... Value
02/01/2007 16:26:44 70.01 4,000 ... O ... 2,800.40
02/01/2007 16:19:37 70.01 7,406 ... O ... 5,184.94
02/01/2007 15:47:22 71.50 10,000 .. O ... 7,150.00
02/01/2007 15:31:28 71.49 4,196 ... O ... 2,999.72
02/01/2007 15:24:51 70.99 376 ..... O ... 266.92
(if thread author is still around, this link might be usefully added to header)