Hey everyone. I am going to get a gp gee bee this summer sometime. I will get the robostruts also. I have been thinking a lot about engines. I want this airplane as light as possible and here are my thoughts. the os 1.20 fs is 33.3oz. with muffler (tower hobbies). so this is the recomended engines weight, 33.3 oz. what if i use the saito 125 that only weighs 24.7oz (with muffler). That is nearly 10 oz. less! My question is this, for those that have already built or are currently building the gee bee now, how does the balance come out with the recomended engine weight of 33.3(i know the saito 180 is about that). now can't i use the very light saito 125 and put the battery on the firewal if need be? i have got to believe that i have the room in a gee bee's fusalage to move some serious weight around and balance this plane with out addidng any additional ballast. that would be ideal (IMO) to get this plane light and nearly 10 oz. saved in engine weight is alot in my book for this size plane. I love the look of the gee bee r2 and i have got to have one. I just want it light to lower the wing loading as much as possible (read: to make it easier to land) any suggesstions or ideas would be great!