OK like many others I jumped on the Lux bandwagon - but now I bitterly regret it. Lux is really durable, and it doesn't move. BUT (and this is a big but) it has an awful contact with the ball. The whole point of stiff strings is that you get a better/truer ball/string contact. But Lux just slips off the ball. You get zero bite. This can make tennis extremely unsatisfying. I love kevlar, I love polys. But Lux is just too darn slippery. Am I the only one who feels this way? So how about a replacement string? Something that is durable, and gets a really good ball contact like kevlar, but without destroying your elbow.