It suppose to play like Lux Alu Power but be more comfortable. I played with it a few times and at first it was great, but after a while I noticed my elbow getting sore. I've had elbow pain in the past but not recently. I strung them @ 58 lbs on BLX90 as I usually string in 60-65 range. I also used Lux Alu Power in mains, and Wilson Synthetic Gut crosses in the same frame and there was no elbow pain. I wanted to try full Luxilon because Lux cut through the crosses after a while. Has anybody used these strings and had any elbow or shoulder discomfort?