Originally Posted by
1nterceptor
Just keep an eye on it, check at least once a week.
My LBS changed my cassette and chain one time.
I think they used a KMC chain, anyhow they didn't do
a good job and the pin started to come off. Now I do
my own work and prefer SRAM's chains with the power
link.
Failed chainlink by
1nterceptor, on Flickr
Please no comments on the condition of my chain, this bike commutes in winter slop
Great picture.
It's not the best idea to reuse pins but then, if you've been getting away with it on HG53s and you know the risks, there's no reason I can think of that the HG73s will be any different.
That said, you obviously have the interweb. Why not order a few chains and pins online and combine on shipping? Then you can have (relatively more) worry-free cycling.