About a month ago I saw these on Hobby King and got two sets. $2.98 for 10 pair +$5.99 shipping. My brother expressed interest so it was $5.96 +$5.99 for 20 sets. These connectors are compatible with Deans Ultra, but they have noticably stronger springs as well as grippy sides. The body of it is larger too. That's a good thing as these require a bit of force, to connect as well as disconnect. Some may find it objectionable. Seems OK sitting on the couch with it, but on a model it may become irritatiing. I'll be using these on several cars and a heli. Will report back.

http://www.hobbyking.com/hobbyking/s...dProduct=11961