About 2 pounds lighter than it would with any other engine. Balance will depend on where the owner places the equipment. None of the manufacturers really think this part through when they do all the fancy deck cut outs for equipment. Rather than have a bunch of holes and slots where I can't use them I'd rather see a solid floor that I could cut for myself to obtain the balance I needed.

I have to say that this is an area that a new Suhhoi coming out addressed rather well. With the exception of the holes for rudder servos it has nothing but lengthwise slots in the deck that are easy to make use of.