Wow!
Obviously... the Portsmouth system is fundamentally broken. Why this is so has been thoroughly debated before. Others are taking a critical look at it and saying err... yes it is.
There is NO FIX to portsmouth in 2011.
Simply declare it Performance handicap system and let your local board run a set of ratings...
The pretext that the table of adjustment factors are accurate is a giggle... That is why they are not allowed in the Area Qualifiers.
A better solution is to use ISAF SCHRS...