On Dec 27, 7:08*pm, Mark Rand wrote:
On Sat, 27 Dec 2008 12:27:44 -0600, Tim Wescott wrote:
..
Unless you are doing it for money, there's nothing particularly wrong with
having to make the odd, difficult, part a few times as a "learning"
experience.
Mark Rand

Even when you are it's common to make spares. Use the "sample" part to
try each setup before risking the good one.