here's a tip for using a 4st don't crash and you will be fine.
not using a particular engine because your thinking you will crash?are you crashing alot then you need more practice is all.
you would be surprised how tough and weak both types are if you hit the ground hard enough both will break I have seen 4st engines survive larger impacts than 2st and vise versa.
I don't discriminate 2st for sport planes,4st for warbirds is how I use my engine choices