Here's the reason I ask on good Friday my plan was to replace one window on the north side of my house. When I tore the old trim off I found that the 30 year old t111 pattern Masonite siding/sheeting was in far worse shape than I thought. So I thought no big deal I'll just replace the bad and get the window back in. Well it turns out that I had to replace 4 sheets of it, and all the real t111 is 5/8" thick and my siding is about 1/2" thick so I bought LP smartside because it would fit in right with little hassle.
After a annoying Saturday a had torn all the bad siding off and the cardboard vapor barrier I put up tyvek. On Easter I hung 4'X8' siding panels by myself, man was that a chore, and I got it all back right installed the window, caulked, an painted all the new siding.
My only fear is that this new siding might fall apart if it gets wet. I know that some of engineered sidings had problems I'm wondering if they have corrected the rotting issues.