I have an Enya .90 and Magnum .91 and both a very good engines. The Enya has decent power, is very reliable, and starts very easily. The Magnum is a little lighter, has more power, is also very reliable, and starts almost as easily as my Enya. I would not hesitate to buy another of both of these engines. The Magnum is pretty much a direct copy of the OS .91 and costs quite a bit less. I couldn't justify the price difference when I was buying the Magnum.