Whilst I am really seriously exercised about the ROPS ruling, I cannot get so upset about the tyre issue.
It is pretty much impossible to make changes without upsetting someone, but . . .
The fact is that most really fast competitors buy a new set of tyres every season, and the new regulations will apply to everyone (discounting any drivel about pre-1988 cars being able to continue to use 1c tyres). Ergo, the competition will still be on a "level playing field", just possibly a tad slower.
Speed Series target times will not actually need to be altered, because they will continue to be the benchmark for everyone. If 99.5 points becomes the new 101 as the mark of an excellent performance, so what.
Yes, my sympathies go out to any competitor who bought a new set of ZZRs or V70As mid season in 2015 and is caught out, but (as has been said above) new competitors will have the advantage of being competitive on tyres which might last more than a couple of hundred miles in road use.
Clearly, there is not yet an established pecking order in the new list 1b, and some of us might end up making the wrong decision -- but, overall, I think what we have is a vast improvement on the original proposal of forcing " road-going" cars on to 1a tyres.