First off, apologize for such a delayed response. Has been a busy few months.
The collision going through the cable is a side-effect of the current collision resolver which distributes the collision forces between the two objects. This does ends up looking/behaving wrong in some scenarios and requires tweaking properties to some strange values for a decent result, as you found out. With the current implementation, there isn’t much to be done which is why I’m implementing a better version of the collision solver to address these issues. No eta on it just yet.