I just got a new XD.45 Service last weekend. I wand to get a laser light combo for everyday carry. I also have the XD SC, it would be nice if the unit fit on both guns. Do any of the members have experience with the Insight XLM light laser? Is it a good setup or should i get a full size unit that will be dedicated to the 4 inch gun with the full rail? Any input would be greatly appreciated!