Runflats or not for winter set-up?

[scoobydoo]

I have ordered a set of 212 wheels for my winter set-up and I have the option of getting non-runflat tyres for them. Has anyone driven an E70 on non-runflats? What are your thoughts? Do they make the ride massively more compliant? Reason I am asking is I would never look back to runflats for my E60 535d. The difference when fitted with regular tyres is huge. Ride is much better, car doesnt skip over bumps, I no longer feel the tiniest cracks on the road through the steering and my butt, road noise has more than halved. The only downsides being a slight loss of initial turn-in sharpness and the notion that I high speed blow out could have more serious consequences. Please advise