Chopjock, you obviously misunderstand some issues.
Helicopter critical component and airframe fatigue life is calculated in cycles, at no more than the certified max weight. If you routinely exceed the maximum weight, there is a cumulative effect, an unknown and possibly very serious one, and we're not talking about engine life here.
I strongly suggest that you fly the aircraft in accordance with the manufacturer's limits because from what you have written here you are compromising yourself, and others, in more ways than one. Speaking as someone who has been flying for a living for over thirty years I, for one, would not now fly in your helicopter at any cost. Unfortunately, because I don't know who you are, I would now be very cautious of ANY Enstrom, in case it has been flown by you.