(quote) That may be true on the Mosquito and many other twins. However, my 117" span, .91 four stroke powered Commander twin, balances well with no nose weight added. A flying weight of 26,5 lbs. makes for scale performance and a convincing "scale" speed.

Bigger engines also means a heavier structure and a higher wing loading. If I had beefed up the structure of my plane during construction and installed G-38´s, I guess the flying weight would have exceeded 40 lbs.
(I am referring to the Ziroli twins of a similar size)
I believe that a twin with "power to spare" and scale sized props is more likely to roll over if one engine quits.

As having no single-time on my Commander yet, I´m not sure whether the plane will maintain altitude on one engine. According to a full scale Commander web site, the plane is "quite happy to be trimmed for straight and level hands-off on one fan"
I think I would just cut the throttle and make a dead stick belly landing. Fortunately, my local flying field offers big grass areas surrounding the runway

The plane is electric powered at the moment, but I am thinking of going back to IC power as I am missing the sound of the four strokes.