Fail rate for bnib Vittoria latex tubes?

[Gabe77]

I've just had the unpleasant experience of having a tube burst straight out of the box. Out of 3 - I don't buy tubes that often but that's ridiculous... Despite what Meatloaf says.
I've been wearing down the last pair of tubed tyres I have and am actually very happy with Vittorias (no actual punctures on the road) but I've had consistent ruptures near the valve webbing from inflating them ham fistedly - pushing in the stem seems to rupture it - maybe it sticks to the rim tape.
This must have been a recognised issue since the new ones come with a longer webbing area to support the exact rupture zone. The one that burst went immediately after just pumping in some air to give it some shape - not even on the rim yet.

[.RJ]

I've been using vittoria tubes for years and have had one out of the box failure, last year. It was a new tube on a new tire and it split at the valve stem within a few miles.

Vittoria sent me a new one.