Hi Desmond,
Most of us use two kites. I ride a 10m Flow SLE for normal conditions and a 7m Flow SLE for when it's nukin'. I also sometimes ride a Vapor, again 10m and 7m.
Also ride a 9m or 6m DNA for surfing on a Converse board in waves.
Being a school owner I have access to lots of kites

but still basically only ride two sizes.
We have a good range of 2008 demo kites and sell new ones too. Come for a visit if you want to try any of the above mentioned kites. We also have 12's in all models.
Good winds,