I just looked up the specs of the Twist vs. the UCD.

UCD:
WS = 56.75
Length = 58.5
Sq Inch = 904
Wt. = 5.75 lbs

Twist"
WS = 54.75
Length = 56.6
Sq Inch = 992
Wt. = 6.5 - 7.5 lbs

The UCD has a bit less wing area but is bigger otherwise. No wonder many like the Saito 100 on the UCD. If you go by the Hanger 9 specs the small UCD would be a 60 size. I guess the next size up would be a 90 instead of a 60 size.

Interesting how different manufacturers have different rating ideas.

Thanks
Barry