I was looking for first hand experience in the matter....what told me I already knew. The plane calls for a .60-.90 2 stroke or .91-.120 4 stroke. With that said both engines will work on the plane with DLE probably over doing it a little. As far as displacement and RPM's the both produce around the same with the prop range the same for both. So as you can see....I have done my research. Just looking for...like I said, first hand experience. And I apologize for offending you. It wasn't my intention