On August 27, 2015 at 18:39, highfigh said...
So, you used a copper cap that probably cost 3x as much as a PVC cap?
There's some unclear thinking going on here.
Yes, for the one tube that I'm going to use day in and day out, I have a cap that won't break if I happen to smack the end of the tube on the ground or somewhere in the van. And yes, it costs three times the price of the PVC cap. Now, if I were going to make ten or more of these, I might start to be concerned about the price of that item.
Another example of unclear thinking was in another thread, where it was suggested that nitrogen should be used in everybody's tires because a billion dollar racing industry* uses it. In that industry, a tenth of a hundredth of a percent improvement might mean the difference between winning and losing. If it were possible to correlate percent improvement with percent of that billion, well, a tenth of a hundredth of a percent of a billion is $10,000, so if those things are comparable, then sure, there's a budget for nitrogen! And every racer should use it.
*I don't care about racing so I don't remember the name of the organization