Snow tire life?

[tomh@metrics.com (Tom Haapanen)]

While I'm waiting for my new Pirelli Winter 210Ps to arrive for my A4
quattro, I'm hoping that someone on the list might be able to enlighten
me on my other snow tire issue.

My wife's GTI has an older set of snows (Pirelli Winter 190, actually),
that are not yet worn out.  However, they *are* getting old.  What is
a reasonable number of winters to drive on a set of snows?  And when would
they actually become unsafe to drive on?

Thankful for any enlightenment ...

-- 
[ /tom haapanen -- tomh@metrics.com -- software metrics inc -- waterloo, ont ]
[ "always do your best.  what you plant now you will harvest later"          ]
[                                                            -- o.g. mandino ]