I don't know the value of having another person's weights, but if you find it informative, most recently I used 150 lb for 10. That would be an example of not being particularly strong.
I probably do them differently than you do: I do them what I call "Franco style." Well, except for grip: Franco used a pronated grip.
The difference is starting the movement with the elbows as high as possible while still having the elbows nearly as closed as possible, initiating the movement as if it were a pullover, and using the momentum to advantage.
Franco's reason for doing this likely was that it allows more weight. My reason for doing it is that the exercise is intended for the long head of the triceps, and the upper arm motion that is involved should recruit the long head more.
Also, as with AngryVader I also like supersetting reverse grip with normal grip. I keep the elbows still for normal grip. I probably only have about 3 seconds inbetween though.
Or another favorite is supersetting reverse curl, reverse grip pushdown, EZ curl, and normal grip pushdown, essentially no rest between.