I'm going to have a go at building up a set of wheels & was wondering if I need/should have a gauge to measure the spoke tension & where can I get one from. I quiet fancy a set of anno spoke nipples for a bit of purple shineyness but was wondering if there is any real probs useing them ? This set of wheels will be mainly my road set & was also wondering if I will have to use the same make rear hub or can I use any 7 speed rear hub :?