I don't normally shoot my SD ammo on a range session. Did run a few mags of each type to make sure they work well in my Glocks. Before taking my gun to the range, cleaning, modding, etc. I will take out the SD round in the chamber, etc, etc. To avoid rechambering the same rounds of SD again and again when I get the Glock ready for HD duties (I go with 1 in the chamber, and with CA laws only have 10 rounds in the mag). I put the next round in the chamber, then drop the mag. the round that was in the chamber before I cleared the gun is still on it's own. I would then put this round as first inline. I then unload the mag in a FOLI (first out last in) order. This way the round that was in the chamber will be at the bottom of the mag, etc. I figured I should mark it with a Sharpie as well, so when it works it's way to the top it is time to use the rounds at the range for a practice with SD ammo. I have 2 mags with SD ammo for each Glock at home. I normally work through one mag and then the next. SO when I have done a full rotation I have 2 mags for range practice. Perhaps I'm a bit OCD with this, but trying to avoid chambering rounds a number of times. I do a visual inspection of the SD ammo before I loud it into the mag(s) to make sure they aren't damaged in any way. What do you guys do? Am I overthinking this and would visual inspection and using the SD rounds once a year be just fine?