Dave
The 2004 is 200g with 2kg of drag pressure
1500 is 215g with 4kg of drag pressure
2506 is 215g with 3kg of drag pressure
2000 is 220g with 4kg of drag pressure
Respectively on the site i checked its 25,500JPY, 23,900JPY and 25,980JPY and 24,300JPY
Im going to test how much drag is 2kg with some scales tonight to see just how much it is and if its enough for breaming. That is the ultralight option here and im going to look at the twinpowers as well.