Cell Updates?

Mine have been upgraded with the newer extension limiters and improved patella plastics.

Any other things along the same line I should either know about or get taken care of?

Is there a schedule recommendation for sending them in for an 'overhaul'? Or is that not even an issue?

I could not ride if not for these. Well...I could ride once. Recup for a year or so. Ride again. I don't use them for protection of good knees, but to make my legs worth ANYthing...neither of them with an ACL.

Thanks for an excellent product!!