I have a Donnay strung with Isospeed Energetic Plus. It is a multi, and really nice, but I can tell I am going to break it real soon. I was wondering what Poly has the same control as this string. I am using Cyberflash on other sticks..my only beef with it is that it dies and breaks really quickly. Any other polys I should take a look at? For example, is the Cyberblue more powerful and control oriented or less?