Thank you for the suggestion . I assume you like the Olight style better, don' t you? I' m concerned about the difficulty of changing modes while keeping the light in a "tactical" position (with the arm kept over the shoulder, I hope it's clear ).
Yeah I prefer it like olights, or the larger Fenix like the TK45.
I like using one finger for on and modes, the tk21 is a sharp light but I wouldn't edc a light like that.