What are the differences with the 2011 skate banana and the attack banana ec2-btx?

Tech Specs:

Length:

153 cm, 156 cm, 159 cm, 161 cm 

Shape:

twin 

Flex:

medium-stiff (6.5 on Lib Tech's scale) 

Camber:

EC2 BTX (hybrid) 

Sidewalls:

Power Transfer Internal 

Effective Edge:

[153cm] 1130 mm; [156cm] 1160 mm; [159cm] 1190 mm; [161cm] 1220 mm 

Waist Width:

[153cm] 251 mm; [156cm] 253 mm; [159cm] 255 mm; [161cm] 258 mm 

Sidecut Radius:

[153cm] 8.2 m; [156cm] 8.3 m; [159cm] 8.4 m; [161cm] 8.5 m 

Stance Width:

20 - 26 in 

Stance Setback:

centered 

Core:

Columbian Gold (wood) 

Base:

sintered 

Recommended Rider Weight:

[153cm] 130 + lb; [156cm] 135 + lb; [159cm] 140 + lb; [161cm] 145 + lb 

Recommended Use:

freestyle, all-mountain, maintain control while charging 

Manufacturer Warranty:

1 year