I too am a Fenix fan I prefer the PD35 I found them on Ebay and tried it out I bought it with the charger and spare 18650 battery. I still have several Surefire lights but after finding this I will stick with them, they seem to hold a charge a lot longer than Surefire lights do. Oh by the way the PD35 has a strobe mode and 5 brightness settings. The Magpul mount works great with it also.
I like the streamlight. Either the tlr-1hl or the tlr-1hpl. Both have strobe feature that can be disabled if desired and both put out 600 lumens, and they are compact enough to work on any rail size for a rifle and also fit great on glocks. Both can be had online for about $120 or with a long gun kit which includes pressure pad for about $150
This is one of mine on my FN Scar I have long arms so that is why it is so forward also I have a pressure switch but prefer the manual way. Thumb control is very easy and close.