I had the B&M for years then I bought the Numeric, what a difference. Not cheap but well worth it. SSK are not hard to install took about an hour to swap out the kits.

 

I thought I read somewhere that B&M also makes the Porsche OEM SSK. Mine is Schnell, and I've been very happy with it for the past two years. My only issue with it is that it's difficult to add an aftermarket **** to it. That difficulty may be the same on all of these shifters, but I've only had the one experience. It's not impossible, but it's not easy, either. Functionally it's great.

 

I went with the factory SSK and my wife loves it. Factory and covered 100% by warranty. No brainer for me.