Simon,
I would like your comment on a small matter, if you don't mind.
I have a small (!) position on Light Crude (Aug) and have just seen the lows of the day been registered at 5895 at market, though I have not seen CS's prices in that region. While I conceede that these have been fairly fast spikes, I have been hovering over my Buy-button when the prices where in that area, not all fast spikes, though finding CS relieably some 10 to 20 pts above what I have on market - not an ideal situation for someone wanting to get out of a position, I am sure you will agree.
Please understand that this is not a complaint per se, though it is a cause for some concern to me.
All the best...
CJ