imho the tk75 is hard to beat for overall use,flood and throw so a very useful light.
the tk75vn is 4400lm
Not sure on the killer throw but that will no doubt kick a55
All depends on your needs,what about the k40vn.........awesome light and that will probably be my next light.
want mega throw then look into the deft x,all down to how much you want to spend/afford.........
There is also the tn35 which is flood/throw,how that compares i dont know.
If happy with the tk75 send it to vinh,get him to work his magic and get it to be your perfect custom light
just tell him what you want,but sure he will advise on the killer throw version