+1 on tuition
I always pay for a 20min tutor session early on - well worth it.
Are those nankangs on a second set of wheels? If it's wet, you'll be much better off on good road tyres. I've done 3 wet trackdays in my TT track car, first 2 on NS2-R's (e.g. Vid below), and the latest this week on continental sportcontact 5's. You wouldn't believe how much better the road tyres are in the wet.
Good move changing up the brake fluid - a lot of people taking their road car out neglect that.
I'd say there's no harm ditching any easily removable weight.
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