Thank you for the advice all of you. I bought an echo cs500p a little while back love the saw...I was looking into buying a pro bar and chain for it...I got a power match bar 16" for it. I wish there was an adapter for the Stihl super ES bar but I couldn't find anything for it, unless you guys know of some way. Just because the Stihl ES Super sprocket nose is attached by 3 rivets instead of one like on the power match. But I got a good deal, I paid 55 dollars including tax and shipping for the oregon power match bar. Was just glancing through brands of chain. The oregon lpx I priced 17 dollars on amazon...so it prolly cost me total 23, I havent priced the Stihl RS chain at a dealer yet. By the way, the bar I bought...160RNBK041 was the model number...I was using the selector on Oregon's website and it wouldnt give me a power match bar. I called the Oregon Techs, and had one of their guys look into it for me, and that was the number he gave me for a power match...which I see fits the Echo cs5000 and Shindaiwa 500 on the website. So hopefully it fits when I get it in...