Reply to Longest USB cable you've used (with no perceptible delays)

So now that I've finally gotten a VCI-100 and blinged it up somewhat, I'm believeing of attaching guardrails on the side like what's on the Audio 8 DJ, then a strap on it so that I can move out from the DJ console and prance a bit on stage or the dancefloor to get the crowd worked up even more. Looking at around 4 - 5 metres which is about the theoretical maximum for a USB cable without repeaters. Has anyone used one that's that long yet? The longest I've used is like 1 - 1.2 metres so I was wondering whether there're any delays perceived when going up to 5 metres.