If you're doing it yourself, hey, you might wanna give it a shot.

The technique that we use for "power off" (we call them "approach configuration") stalls is to not drop below 14" of MAP to prevent over cooling. The RPMS usually remain above 2K so the oil pressure problem that you (I think it was you) mentioned earlier should not be an issue.

We also let the engine idle for a minimum of 20 seconds before feathering the propeller in flight to prevent the oil from coking in the the passages of the turbochargers. We've never had a lubrication problem, but some of our instructors just don't take very good care of the aircraft, thus the problems that I mentioned above.

Other than the MX and other issues that we've already discussed, they're great aircraft....hell, we use them for single-engine go-arounds (don't try this at home, boys and girls) in the PHX summer heat, and they do quite well performance-wise.

Good luck with your decision.

One more thing: Have you added unfeathering accumulators (or is that even possible)? We have one come back about every month or month and a half single-engine because the instructor couldn't get the engine to re-start after an intentional in-flight shut down. I haven't had the problem because I prime the engine differently that what our checklist calls for, but every once in a while the starter kicks that engine over a lot slower than I'm comfortable with when I'm restarting in flight.