Wow, I can't believe I missed this post,...I have a MDS .48, it's dead, the only advise I could give you is never run fully syntetic lube fuel through it. I't will die. Mine has a streached crank because I switched to fully syn fuel, I even richened it up for the first flight, and it was it's last. MDS stands for "most die suddenly", and it's the truth, but it sure had gobs of power running on 10% nitro, byron fuel that is. If it were me, I'd buy a supertigre for cheap and never look back. Even my cheap chineese made tigre runs great with almost no break-in time.