Each time I have ordered a rack from Martin Creek it comes super fast. I have ordered from both the web site and over the phone. The Owners are the ones you talk to when calling and have always been super helpful when deciding which rack is be suited for my needs. I will be ordering again soon with another kayak on the way this spring!
You must be careful of the rack if you have a plastic boat and handle it yourself. Ours are about 60 pounds and unless you are very careful of the rack, I wouldn't go with anything heavier.