the £20 ones will end up imbeded in your chin ( i know)
What's that phrase? Something about a bad something blaming something else?
Can't quite remember it, but I know I've put my £20 spring compressors through a lot of work and my chin's still fine.
If you were anywhere near Bristol, you'd be welcome to borrow a pair of my chin-seeking missiles - I've wound up with two different style £20 pairs after a clerical error a year or so ago.