In reply to Tommyads:
The spring/gate on the beta designs stick can be bent a little to make it a bit grippier on solid gates.
It definitely works fine with the WC helium and on pretty much most other conventionally shaped wiregates - eg. it has trouble with the DMM shield.
As Morgs has said, on wiregates you arrange the spring so it sits inside the wiregate, rather than around the outside like you would on a solid gate - very secure in this orientation.