RE: TF FW190 GIANT ARF
Since nose weight is needed in the Fw 190A for proper CG anyway, it makes perfect sense to use "weight" that is useful. Electric start would be very useful weight. Much better than lead as far as usefulness goes.
When I was working W/smaller sized aircraft I used to take the nearly completed airframe to the LHS & select an engine that was heavy enough to nearly balance the CG. Shifting battery packs was always enough to get CG fine tuned.