stirrup question, I have sore knees

["guest@endurance.net" <guest@endurance.net>]

Brenda Brooks bjbpugs@aol.com
I would appreciate your input on what kind of stirrups would 
help my sore knees.  Looking at Cloud Nine, Trail tech or E Z ride.  Currently have western but wide, with tapederos, came with the saddle.  I added some foam and it helped some but not enough. Both knees hurt equally,  length appears to be proper, have experimented with shorter and longer but can't see much change. I do have a bit of arthritis so that makes it worse. I ride a Paso so don't have to post, rode this weekend and only walked and knees still hurt.  So I thought I would try a different stirrup.  Any suggestions would be appreciated.
Thanks.  Brenda   bjbpugs@aol.com