Just wondering, when refurbishing a bike, when you take the chain apart to remove it, do you use the chain tool to push the pin out just enough to get the chain apart, then use the tool to push it back in? Or do you remove it completely and use a master link? Any safety issues to pushing the original pin back in? Seems like it works, but thought I'd ask. Seems like it would especially be an issue on skip tooth chains where a master link of the correct size may not be readily available.