I am thinking about adding a tac light to the picatinny rail of my HK P30L. I've never put a light on any handgun before and wanted to get some thoughts on what has worked best for the HK Pros out there. Doesn't need to be the Rolls Royce of tac lights. TLR-1 seems to be what I see the most of, but never seen one added to the P30L in person. Thanks for any opinions and sources.