In which one of your "better" methods is the saw out of the way of other #### sliding around in your truck bed and also how are you going to lock the saw down so some theiving bastard doesn't take off with it?
well first off, i never used the word "better", so theres no reason to get all defensive about it
but since you asked.. the one where i mentioned putting a 2"x10" across the bed, sideways, in front of the tailgate, in those cutouts that every pickup has in the bed, for just that, lets you load your saws between your tailgate, and the 2x10, i drilled a bunch of holes across the top of the 2x10" for anchor points for bungies, and put my saws and other crap between the board and tailgate, and bungie them down if need be, this leaves the whole front of your truck bed to put whatever you want in it, bashing around, without every hitting your saws
or you could do the same thing and put the 2x10" in the front section of the bed, making the same storage between the board and the froint of the bed/back of the cab
either way, the bar and chain are already exposed to damage as is riding like that
since that way of transport is not weather proof, you must be taking them out nightly either way, right?
i have a locking cap on my truck , so i dont worry about locking things down, but if need be, you could easily lock them with a chain, like you have in your pictures.. to one of the anchors on the inside of the truck bed, that should be sufficient for going into a store or whatever, i guess someone could come and unbolt those anchors if they really wanted to.. or they could just cut through the handle of your saw in seconds with a power sawzall or even a handheld hack saw, no ?
i bit my tongue the first time, but ill just say it this post... it looks like youre trying to show off. youre driving around with your big shiny stihl saw sticking 10 ft up in the air for everyone to see. it looks like a trophy, and i bet people are laughing
aside from that, doesnt it get covered in dust and #### riding up in the air like that? the area you have it in is the well known "air vortex" area of any open pick up truck bed, where all the air is trapped swirling. in my opinion on a list of practical ways to transport a chainsaw in a pickup truck, thats about bottom of the list