Hi,I wish to hear the reviews from you guys who had used very nice wheels.My wheels always need tuning of the spokes after about 400km ride. Is that normal? I mean I heard mavic rim is very tough.They don't need to tune that much right? Because after I send it to be tuned manually,when it came back,I found out the tension of the spokes on the rim is not uniform anymore which mean when the wheel is spinning the spokes looks moving abit in and out(the rims were alright). Will that cause them to reduce aero? Do you guys have the same prob and if not then what tough wheels are you guys using?