I have decided to put an OS 95 ax in my new Tiger . It isn't any heavier than my OS 75 that I have in my current Tiger but it has a lot more power . I had already ordered it before I realized that it wasn't any heavier than my OS75 . I was actually looking for something with a bit more weight because Tigers usually come out tail heavy and I was hoping to lose the lead in the nose . I am making it a tail dragger and increasing the size of the tail feathers by about 3/4" . I will push the engine out a bit and make a built on cowl .