Everybody needs a TS10.
It may not be The Perfect Light, but it comes a lot closer than many other lights. Do you want great CRI and R9? The CPS2323 is solidly 9080. Do you want lumens? The TS10 has more than enough for any practical use. Do you want small? It's the size of a button-top 21700 cell; you could shove it inside most 21700 lights and screw down the tailcap securely.
IMO, the only thing that could make it more perfect is a 4500K 219b emitter swap.