If your TK16 is anything like my TK18, to get to Turbo you have to do a relatively slow double tap. Too fast and it doesn't register it. The slow Turbo double click also complicates matters if you use the on-off technique that some do with flashlights that have momentary.
I recently purchased a Fenix LD30 (it has momentary). Although it has a mode memory, it is easy enough to keep it on the high or Turbo setting. The side switch does not work when the light is off so you shouldn't have to worry about it switching modes in your pocket. The Turbo is advertised as 1600, and the high at 800. I keep it on high, and added some DC-fix for a slightly larger hotspot and spill. It's barely bigger than my SL Macrostream 14500, but weighs more (as it is an 18650). Other than not having a moonlight mode, for me, this seems like a great "do-it-all" pocket light. It's also smaller than my SF EDCL1, which is a single CR123 flashlight.
Another option is for a 14500 light. I use a Streamlight Macrostream for work duty (500 lumen Hi, 50 Lo, tail switch) and was looking at one of the Klarius 14500 flashlights that advertises 1000 lumen (tail mode button next to tailswitch). The 14500 lights are sometimes thinner and a hair longer than the 16340 ones and have similar capacity. The only reason I haven't picked up the Klarus is that I'm afraid I will activate it with the mode tailswitch when in pocket.
There are a few nice options in the 500 lumen range. The SF EDCL1, Lumen Factory CR123/16340 parts, etc. The EDCL1 has similar brightness and beam profile as the LF, but the SF's spill is larger. However, the LF head is noticeably thinner (since this is for pocket carry), and is spec'ed to work with either CR132 or 16340's. Malkoff also has some options.
Eagletac offers some 18350 lights that advertise at over 1000 lumen, but you have to check their spec sheet for "momentary" or "forward clicky" as some are reverse clicky, some are twist head for on, etc. I like the UI on their Tactical D series line, but they are 18650's and 2xAA's. The non-tactical D-series are reverse clicky IIRC.
I have no experience with Jetbeam, but might pick one up in the future.