I've noticed a few WCS folk comment (both on here and in the Real World) that you need more "connection" than in MJ.

As a WCS-near-newbie I'm interested to find out a bit more about this- what's different about WCS that means you need more "connection" and what form should it take?

Personally I have a shoulder that doesn't take too kindly to being subjected to too much force - so I want to apply as little tension or compression as I can get away with, and also protect myself from possible injuries from partners.