I added a tactical tailcap to a PD30 and was running it on some AW cells and it was the perfect size for my pocket. My son has sort of taken it over and daily carries it now. A number of years ago I ordered what I think is a PD35 (maybe?) because I like the 18650 battery size, and while it is a great light, it just doesn't fit in the pocket like the PD30 did. So my question is, are there any 18650 lights that are easily turned on by a tailcap button that are more like the PD30 sizing? I can live with more diameter if I had to, but it was the length that made it annoying for the pocket. What do you all recommend?