I think you will find the problem with the Strats initially was not to do with the P&W 4360 engine alone but more to do to with the hollow steel Curtis prop blades which I believe were electrically controlled rather than by Hyds . This type of prop got such a bad reputation
Was it not the Connie that had the troublesome Curtiss electric props (as did the C46, and indeed the B29) ? The Connie had Curtiss-Wright engines, which I thought were associated with the prop maker.