out of curiosity:

1. what's the best way to distinguish whether it's a thin or thick cup model—especially when missing the spindle? any signifier outside of either the cone or cup?

2. (related to #1) is there a difference in a spindle measurement between the one for thin cup and thick cup? like the length between the flanges?

3. any mechanical difference, or is it just one of Campy-ish hectic variation experiments?

thanks!