Right. I've run street tires in open classes many times. Hell, I just ran a 4000 pound four door sedan on all season tires in BM (even ran the BM PAX!) not many weeks agoSo yes, my point is I'm not making this stuff up and you can enter, support your region and have fun. I speak from experience. Ask around.
If memory serves me correct:
My first season of autoxing the RX-7 I ran on street tires in SS (an open class). I think 2000 was my first season? Perhaps it was 2001. I thought about running Novice with SCCA but changed my mind and ran the open class because I didn't see why I shouldn't; regardless of the letters on my car my talent level wouldn't change and at least in the open class I could run against my true competitors. That same first year I ran Novice in ER; also on street tires. We had a big Novice class that year in ER so it was fun. I don't recall if ER had the no R tires in Novice rule then (I don't think they did) but I was on street tires. In my second season I ran my first Tour and Divs on street tires in SS (an open class) as well.
People are collecting info for the Div and after hearing many opinions they'll make a decision. Whatever that decision is I'll accept it. The question was asked and I've offered my opinion. Mine doesn't agree with everyone elses and that's OK. I'm not offended or unfriendly with people just because we may disagree about something.