Stronger springs?

I have the gimbal springs set as tight as possible and still don't have the tension I would like on my DC-16 sticks. Does anyone know where I can get stronger springs that will fit the Jeti gimbals? I tried a set of futaba heavy duty springs but they have too large a diameter which causes interference with the center return after movement in one direction.

Thanks!
Peter+

I found some springs that work.

www.mcmaster.com/nav/enter.asp?partnum=9654K942 -- for slightly harder pull
www.mcmaster.com/nav/enter.asp?partnum=9654K941 -- for much harder pull -- this is what I'm currently using.

Peter+

are you kidding? .... Wow -> I actually prefer to have more direct control and less strong spring tension. I normally put mine to a level where they would not accidentally move but just that much.

im4711 wrote: are you kidding? .... Wow -> I actually prefer to have more direct control and less strong spring tension. I normally put mine to a level where they would not accidentally move but just that much.

Not kidding. We all have our preferences. I fly the lower classes of F3A (precision aerobatics) and find the tight springs prevent accidental cross control and give me much more precise control over the airplane.

Peter+

response was not meant too serious. Still amazed since that means quite strong tension.