I am new to Glock. I have shot numerous models and calibers in the past and some how never owned one until now. I picked up a G20C a few weeks back and must say I am highly impressed! I have been looking at 10 mm's for several years and finally found the deal I was looking for. Although I don't see a need for any upgrades I have to ask, what are some worthwhile additions to this great pistol? It already has Trijicon night sights and I am considering a Lazermax guide rod or a Crimson Trace! Any suggestions?