What sold me on LRD's was the day CamATV and I went out and tried 5 sets of pipes on my bike. My bike is a 4mill stock cylinder bike. I was stuck on T-5's and that was what was on my bike that day we tried all the pipes. T-5's ran really strong in the low and mid range...top end they kinda just flatened out. Next we tried shearer small bore inframes, they didnt pull worth a shit in the low end, but damn they pulled hard up top. Next we tried T-6's, they were kinda like the t-5's but a little worse on top. I also had CPI's on it for a while and the CPI's pulled a little better in the mid range than the shearers but still wasnt what I was wanting. Last we slapped on a set of LRD's. They had damn good power in the mid range but on top they almost felt like a shearer. I was amazed. The next day I pulled off my T-5's and was in the hunt for LRD's. Retail price on LRD's is ridiculously expensive, so I went the used route. My t-5's were in prestine shape and I traded those for a set 0f 10 yr old pipes lol! I currently have 1 set on my bike and have this set for sale.