So I got an '07 Tacoma Double Cab, 4x4, V6, 5 speed auto, 6 foot bed with a canopy (or do you guys call 'em camper shells, whatever). On the top of the canopy I have 4 landing pads where I have 2x removeable yakima racks with 66" bars. I put the 'toon on here and it works out but you gotta strap 'er down pretty well with the ratchet straps and even then she shifts a little bit at times. So much so that at times if you're not careful you gotta worry about the strap hook coming off the end of one of the bars. So I found an accessory from Yakima that is basically an end cap with a little "nub" that will prevent your hook from coming off the end. They are called strap caps: http://www.nrs.com/product/3655/yakima-strap-caps Anyways, to increase security at the least I'm going to get those, but I'm wondering if anyone has any other solutions short of a load guide type of thing that would work on Yakima racks/bars to better keep the toon aligned and reduce the potential for it to shift while on the bars (even when strapped down well).