Thanks for posting that Ed, there is nothing like trying out ideas for yourself. I haven't tried offsetting the thrust angles but your efforts show that it does work.
A while back my brother and I made a twin out of a .60 size trainer. We put two .25's on it and found the single engine handling to be very nice. The angles were
zero-zero and we attribute the good handling to the small engines which, when one is out, doesn't create the wild swing we've seen on other twins with more power.
I suppose it's all in the trade-offs we choose when building our models.
We have flown many times to practice single engine flight and can do slow flight and even go arounds on one engine. I think this kind of practice will come in handy
when we fly our scale twins.

Paul