good question, I have no experience with the LD02 but from photos I can see the button sticks out, so if the light gets sideways in the bottom of a pocket, maybe thats the perfect storm for activation. You might benefit from using a half twist to lockout the light.. though at that point you might as well just have a twisty light.
Which pocket, of which kind of pants, do you have accidental activation? I pocket carry a Lumintop Tool, its button sticks out a LOT. I have not had any accidental activation, I think because I carry in a vest pocket, which maybe does not produce the pressure you experience with a pants pocket.
I think people who carry clickies using a pocket clip, or vertically next to a back pocket wallet, might not have the accidental activation issue your carry mode creates. I actually prefer twisties myself, I dont get accidental activation, and the light is shorter and weighs slightly less than a clickie.
But the new switch on the TiTool definitely interests me, as tailstanding is a priority feature for me.