So I am planning to buy some wheels soon, (48 Spoke Crushers ) and they are machine built. When you buy machine built wheels, do you untension them and retension them before you ride them so that they are as good as handbuilt wheels? I have heard of some people doing this, just wondering if it is the right thing to do. and I do know how to build wheels, so the level of technical difficulty is not a problem. Thanks for the help you guys.