The 996TT hollow turbo twists use an all metal valve stem as opposed to the non-hollow turbo twists that use a rubber stem. There is a reason for this by design the gap between the walls should not have any rubber in it.
How do the Orange valve stems seal against the inside/outside walls of the rim, are they all metal?
On accuracy, how close do the readings read to a quality old-fashioned pressure gauge? How frequently are the measurements made and sent to the receiver unit?
I use my stock wheels for track use and want to know how good a system this is for track guys..