Locking Banana Plugs?


I am trying to re terminate some speaker cables I have.I am interested in the "locking" style banana plugs.I was wandering what experience some of you might have with this style.I am curious if there is trouble with the bananas staying locked or coming loose.
Thanks
timperry
Post removed 
I like locking bananas. Although for me as a retailer, they are little bit of a pain every time I want to swap speakers around for a customer (lock and unlock each time) they work great and give a good solid connection.
I use BGOLD locking bananas from ramelectronics.net which work well for me using Viablue sleeves. These seem better than some locking bananas that I tried from Parts Express.