The issue with sticky tires is that I could only run them about 7 months of the year. As long as there is no salt on the road, I'm driving my 914. This year the season started in March and "ended" in December. This year alone my car has seen rain, snow, hail (and that was all in just ONE drive).
As much as I'd love sticky summer tires in the late spring, summer and early fall, I don't want to ruin tires driving when road temps drop below 40.
Zach
We run sticky summer tires on the 4.0L and the /4. No issues here with running them year round.
The /6 is just a tourer, so it got 195/65-15 BFG tires, not sticky tires.