Croqueteer
You should not pick up "heavy ice" in stratus clouds. If you do then you have wondered into something a lot stronger. One has to look at the weather before flying.
I've climbed through 5000ft or so of stratus many times and have usually picked up a few mm of rime, occassionally nothing at all. I have a TKS prop which maintains power regardless of ice but that doesn't help with the airframe.
I suppose you would say the only proper way to fly is a jet with weather radar, and that nobody should venture into IMC below 0C with anything less, and totally pedantically you would be right. But that doesn't exactly broaden somebody's understanding of these issues as they affect flight planning.
Your comment about needing 2 engines for flight in IMC is interesting. Can you please explain the physics involved? I am always willing to learn something new.
If you make a "serious" post you ought to explain the reasoning. Brief posts like this help nobody to learn anything.