Hi --- Am considering purchasing the "Maine Roll-On"
(www.maineoutdoorproducts.com) for my Yakima rack system mounted on my
pickup with cap. Has anyone had any experience with these, positive or
negative- are they durable, difficult to attach, eg.? I'm getting too
old (and too weak) to wrestle my 70 lb canoe onto the truck. This looks
like it should ease the job. Thanks in advance. Jim Brady