i know weve dabbled in this before. My question is do you think by positionally engaging the current off and on (holding the unit up or down) so the unit comes "off and on" through the mercury switch, is that the same as turning the unit off and on in the normal way with the on off switch. As i heard normally it sometimes retunes itself turning it off and on, do you think this is the same as interrupting and reestablishing the current, with the mercury switch.? my gut feeling is it doesnt matter, what are your opinions,? it matter to me as for a modification im thinking about. thanks for your input, CO