Not sure about your garage guy/friend, he's obviously trying to save you money and that's a refreshing change but he maybe shouldn't do this against the advice of major manufacturers and fitters, any decent one would refuse to fit two winter tyres for the reasons already mentioned.
Yes, I know, it's a money thing and they're trying to sell you more tyres but four is best.
I'm very much inclined to agree with you. I was perfectly prepared to shell out for four winter tyres. Andrew was obviously trying to save me money. Remember, the relevant conversation occurred in October, when nobody thought we were in for a re-run of last January, in November.
In his favour, he has saved me money in the past by slithering out of doing something I asked him to do - most notably, repair the air conditioning on the Pug GTi-6, when it wasn't economic in point of fact, and when the scrappage scheme came in I really appreciated his attitude to that one. This time, I'm not convinced his judgement is entirely sound.
On the other hand, a work colleague yesterday said she had chosen simply to fit two front winter tyres also, and was getting on fine. I'm getting on fine too - mainly because the summit of my ambition on this was not to get stuck, and that objective has been achieved in spades.
Rolfe.