I was troubling for the same problem, so I emailed Chris on facebook,
this is his answer (thanks again Chris!):
"Hey buddy. Stoked you got the skis!! Go with -2.5cm behind center, but make sure to...

Hi,
as the title, anyone have a 130mm brake for Marker Jester??
I need it for my Ep Pro! :wink:

no problem...

However I understood something about these ski. It's a bit heavy but funny.. :D

I thought that this was the right thread......
Sorry if I don't express very well, but I am italian and I don't speak english very well....
Maybe is this the reason that I seem younger....

Great thread!
does somebody know the obSETHed's weight?