One suggestion thanks to a rack redesign I just prototype completed yesterday. If you don't want you rack on all the time, you want to have a regular bike to ride/race(yes, I use one bike for everything...Specialized Allez Comp), how easy is the rack to put on/take off the bike. The rack mount that I have the idea for that works great...I need the rest of the rack to go with it...I don't need any tools to put it on/take it off and I can put it on/take it off in a matter of a few seconds. Yes, I'm not looking to attach panniers to it so I have the desire to try my darnedest to avoid side arms coming down from the top of the rack. I've been designing around wood thus far, hence I need a better rack that doesn't have quite the flex that wood does. I'm also building a wide rack since I normally carry my 15 inch laptop on the rack and I don't want any part of the rack overhanging the rack itself. I kinda prefer to keep my laptop in one piece so I want it sitting flat.