Bias Binding Making

There's a big thing on MN right now about making bias binding.

I already have an attachment for my sewing machine that can make binding (as in the stuff that goes round edge of vests), but it's not terribly accurate or precise.
<sigh>

I've been looking for something that can help thread it through.
When I did my HND, we had binding feet that had a wiggly bit of metal before it, which basically lined up the fabric before it went into the binding foot. (like this. it probably was this)
I need something like that for my foot.

Anyway, in the meantime:
some information on making Bias Binding.

Using a knife:


http://meijosjoy.blogspot.co.uk/2012/04/diy-bias-tape-maker.html




















One using pins:

http://portialawrie.blogspot.co.uk/2012/06/nifty-tip-no-bias-maker-no-problem.html 



http://bee-inspired.blogspot.co.uk/2011/05/bias-tape-tutorial-without-bias-tape.html













Or one with cardboard:
http://sewing.craftgossip.com/tutorial-diy-cardboard-bias-tape-maker/2013/02/09/




















and by jingo, if this isn't the binding foot I've got!
http://www.youtube.com/watch?feature=endscreen&v=o3ikMo5li4Y&NR=1
(slightly different because of the clip-on vs screw-on shaft)

(screen shot)

and in all this time, the reason I can't seem to get it to work is because I've been putting the binding into the curly bit at the end instead of into the little slots partway down. If I try that, I bet I can do it! (why I didn't think to look at YouTube before I'll never know)

See, now this is mean - I need a Bernina machine!
http://www.youtube.com/watch?v=q3ho1S0d0SM