FFF,
Yes, I have tried this. Works well with the T67, too. Even the humble PA-28 starts to become quite unmanageable when you do this.
Then only machine that I have ever flown which probably wouldn't behave this way is the Thruster. If I recall correctly, the application of power in this aircraft produces a strong nose-down moment. Haven't tried it in the Thruster, though.
Never flown a Pitts, neither, but I would expect it to react as the 150.
Certainly, everything that I've ever attempted to stall, flick, spin, has entered said manoeuver much more easily with power applied. I'd bet that a Pitts does, too.
Never stalled an Emeraude, but the Cap 10 is the same animal (I think) in a different guise. Stall is crisp, but recovery is no different to any other machine of which I have had experience.
cheers, bogbeagle