In general that seems find to me. Let me ask, what do people think of my "Bit of Force" rubber cannon? BFC pointed out that if you remove the tension it has a little bit of the force. It is additive with tension, and the position makes it a better cannon
. In fact there is no really good place to avoid some node-material intersection and still have that cannon work.
I like the way Bob used it to get some inexpensive tension on his catcher, too.
If stuff like this is fine with the majority, I say let's go with it.