I thank you all for the comments. I'm only stating what I've been told and what I can see with my own parts. I've been running JR Z9000T servo's with my 8T 2.0. When I blew the first set of gears, I installed the 1.0 spring. Blew that and I backed the nut all the way down (not hitting the chassis but as far as you can go).

Having removed it yesterday, I can confirm that I all but could not actuate the saver in my hands. At the track Saturday, I met a racer who had told me the deal with the bevel edge and all that. He had his 2.0 saver assembly out (he had a spare) and I could easily actuate his after his bevel edge mod.

I'm not ruling out the possibility that my 2.0 saver has/had (I tried the bevel edge thing myself last night) some kind of unique mold defect. In all fairness, my 2.0 buggy has been just fine and all I've done on that so far is the 1.0 spring and backing the tension down as far as I can go without hitting the chassis. I didn't ask for the 1.0 plastic, Bill suggested it.