Ahhh...should have been more specific. With metal tracks, if they are the late Kenny Kong tracks with the locking pins, not a problem, leave them as they are. If the pins are not locking, and from the sound of it yours are the locking pins, then yes, change them. I should have been more specific and said "for the stock Tamiya tracks that come with the KT kit, you will want to..." Sorry, my mistake. I will grovel the appropriate amount of time in front of the statue to the Goddess of Massandra.
Some metal tracks from Kenny now have closed ends, in other words from the outer side of the tracks you can not see the pin ends. With these, you can not change the pin location. However, most, if not all, of his newer sets have locking pins, whether they are closed end or not.
I do not know if the tracks from asiatam or some others have locking pins. In the old days, when Kenny, who is the first by far, and still the leader, in metal tracks for our tanks, we had to acc the pins in, or do what I did, and peen the head end of the pin, IOW make our own locking pins. Worked, but oh brother, what a time comsuming process.
Anyhow, groveling will commence.
Oh yeah, forgot to mention one thing. impact has locking pins also,so if the tracks are impact, leave 'em alone. Just after each run, if you have impact tracks, it behoves you to check all the pins and any that have begun to walk out should be pushed back in to seat properly.