I have a Tower .75 in my SSE and i can gaurantee that it will not have unlimited vertical. I haven't flown it yet but the SSE is just too heavy, and the .75 is the max that you can fit in the plane. I had the OS .50 in my first SSE, and it pulled it along very well but no where near unlimited vertical. Unlimited vertical is one thing, but having the power to pull out of a hover is another. If you want unlimited vertical pick a different plane that's lighter. Just my thoughts.