There's a bit of a discussion about it in here somewhere:-viewtopic.php?f=3&t=84060&start=30&hilit=chain+connecting+pin
But that basically answers the opposite of what I want to be sure about. (In there, people say 7800 chains cannot be joined with 7801 links)
My latest 7901 chain arrived with no pins, fortunately I had 1 (and only 1) spare from the previous chain, so i've used it up.
Just bought a pack of 5 spares ("Chain Connecting Pin - for 10 Speed, CN7801/CN-6600"). Are these identical to 7901 pins?
I don't mind wasting the cash I've spent, I do mind a snapped chain mid sprint!! Just want to be sure.