Hi... I've lurked at this forum for years and this is my first posting here.
I work on the streets (LE) and I recently received a black Fenix TK11 from Fenix-Store. I chose the TK11 over the TK10, since the TK11 has a polished reflector (my preference). More importantly the TK11 accepts a rechargeable 18650 battery, which gives the TK11 some very impressive run times - 2.7 hrs on "turbo" mode and 12 hrs on low.
I don't have the Surefire, so I can't answer for that. However, I do have the Wolf Eyes Defender DXA2/R2 that is rated at 280 lumens. Although the WE orange peel reflector puts out a smoother beam, I find my 225 lumen TK11 has a much nicer throw while providing an equivalent spill.
Although I've only had the TK11 a few days, it is now my favorite "weapon" on my duty belt. On my first night with the TK11, I effectively used it to stop a person coming toward me dead in his tracks.
I didn't care for the TK11's tactical ring, and I easily removed it. That left some exposed threads, but it's minor. I contacted 4Sevens and I was assured that they will soon have brass & black rings available for the TK11 to replace the tactical ring.
My TK11's element is also slightly out of alignment (as others at CPF have complained). However, it is not detracting in actual use. I never notice the halfmoon donut it produces unless I make an effort to find it, such as shining the light at a nearby wall. Considering that I paid less than $75 for this extremely solid, very powerful flashlight, I can be forgiving of such a minor issue.
FWIW: I received excellent customer service and quick responses from Fenix-Store and 4Sevens. :twothumbs On the other hand, I've received one very slow response, as well as no responses at all, from pts-flashlights. :thumbsdow