[Si Coe]

I'm not 100% convinced on minipins all round myself. They work well on the carpet sections but I find slightly scrubbed minispikes grip better on the polished floor for only slightly less traction on the carpet. And since there is no lack of grip on the carpet, and no grip on the polished floor thats the way round I'll be thinking.
Which is ultimately best will depend a little on how the track is laid on the day though.