[Walt Fricke]

If the 2 to 1 downshift was the only real issue, I'd not bother much. You don't do that too often, and not in a hurry. The 2 to 3 upshift is where you are apt to rush things and damage stuff. Incrementally, to be sure, but it adds up. Porsche redid the teeth on the 1st gear side of the 1/2 slider to try to make this downshift work better, but I think it can still be a problem due to other, more obscure, wear.

But if you get a groink noise on just about every 2-3 upshift, or something like that on some downshifts, the wear is adding up. If you train yourself to double clutch (not just heel and toe), you can get along for quite a while with a non-functional synchro system. Eventually, wear from those teeth rubbing on each other before sliding into position will cause it to pop out of gear on acceleration, though.