im building a GP cap 232, and i have a 25% sig extra 300, the extra has a saito 180 mounted upsidedown, and i love the looks rather than having it stick out the side of the cowling, as well as other reasions, i also plan on mounting the engine upsidedown i put in my cap, what are the side effects to this, as i notice most modelers go by the recemended sideways mounting.