We've seen the connectors you're talking about. At a glance, they seem to offer the best of both worlds: the mechanical clamp of a crimp connector and the superior connection of a soldered connection.
In this video we cover How To Crimp Quick Connectors - Ashlock, Ashlok, Maxloc and it also is similar for Standard servo connectors. If you have watched the A10 video series so far than this will be a ...