Wow, yea that is nuts!
..and that's a good point about the auto failsafes on some receivers. I've never had to check, I don't think any of mine have it. Makes sense though.
_____________________________________________
Tiger I - Panzer II - Panzer III - Panzer IV - Chi Nu Kai - Panther G - KV-1b 756(r)
M4A3(76) Sherman - T-34/85 - M3 Grant - SECRET PROJECT