I'd be cautious.. Make sure the "used" one your looking to purchase is in decent shape! Heck I've bought 2 new ones this year and both have broken where the lead attaches to the under plug washer in just 2-3 races..
Yes the ones I've bought are the newer design. It's not a matter of them bending its that they crack where the lead attaches to the brass washer. Obviously there no way to repair them.Are you not getting the new style lead? Takes a lot to even bend them let alone break.