I use the Olight mini as it is the only pistol light I have found that is reasonable bright and fits an XD-S without getting out into the blast zone. I have the PL-2 VALKYRIE mounted on an AR and I really love the compact size and it is bright!
The Mini 2 mounted in my review…
Here is my review of the PL-2 Valkyrie XHP35
Both lights get a workout as I shoot around 1500 rounds of 223 per month and the XD-S sees 300 or so for practice each month.