I've used the connect bar a couple of times now.
+ light, clean, good lines.
- the centre is squared and a bit beefy, not that comfortable for me riding one handed.
I've just removed the b-safe attachment to the kite and managed to attach the fifth line all the way to one of the power line connection points to create a single line flag out. I'll have to test and see if this works out. Otherwise it's another minus for water use.
All the minuses are irrelevant if you use the bar as intended: on snow or with a buggy.