Shaken
dont get me wrong, i dont want to convince you that what you are doing is dangerous because i understand is radicated in you the belief is not (and im sorry for this). i try to explain the people that could read this post of the possible consequences.
having said that i have experienced both glider and powered airplane.
well the area the gliders exercise is indicated in your chart (there is a reason for that do you agree?).
the gliders have the right of way compared with airplanes powered (there is a reason for that do you agree?).
landing a glider is slightly different than landing an airplane and they are effected by ground condition more than the airplanes so if you have an unusual situation you are able to recover it better than an airplane much better(they are lighter and slower and the energy is 10 times less).
gliders have incidents and if you take the time to look in the NTSB databases you can see that most of the incident with gliders are because of rwy incursion or collision in the air (there was an incident few months ago in USA a collision with a glider and a commuter jet, the pilot in the glider was able to save his life because he was carring a parachute).
i can add more, when you kill the engine you loose also the generator and you have your avionics running on the batteries...well you can be lucky and your batteries keep running or you can be unlucky and you loose batt and avio...my point is if you are so lucky why dont you play the lottery instead of playing with your life and others too?
i will conclude this with one point...try to ask the ATC in your airport that you want to kill your engine to simulate an emergency and let me know what is their reply.
i can tell you now they will reply that this is not an approved manuever, and if you persevere in this well when you land a fed and a faa agent will wait you...one will revoke your licence and the other one will arrest you.
How about an uncoordinated stall at 100’ agl?
How about a full pull up on a normal category a/c at say 10 kts below Vne?
What about flight into known freezing rain in a underpowered bug-smasher?
well if your doing these things my friend you are really a danger in the sky.
Shaken, i hope i didnt bore you with my statements and i really like you and all my fellow pilots to fly safe.