I use Pirellis because that is what I trust, I have raced on Pirellis, Metzeler's & Yokohamas & yes I have heard of Rennsports just never used them or other race tyres on the road as when I do a trip it could be 3000 to 5000kms I wouldnt want to stop & fit a tyre to complete a trip.
I know what you mean about getting out of Wellington it can be as bad as getting out of Auckland. Some of the best roads in the Wairarapa are out the back of Masterton with some good high speed roads to get there. The best ones have only been sealed in the last 2 to 3 years with a variety of high speed & low speed corners.
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