Steve, my point & Dave B's point is that it doesn't seem to be safer to add a hardtop to the stock car, particularly without any solid bolt down attachment. It would almost certainly crush and twist in an actual rollover, and as I mentioned could come off and take off one's head in a really hard impact with a solid object.
Regarding your comment about touring laps, perhaps we are talking about two different things, if you are talking about requiring a hard top for race laps with passing and a winner, you will get no arguement from me, but I don't believe you are.
I don't have an interest in non timed "parade" type laps, if that's what touring laps are. I would actually rather run time trial type events with the car, but know that it will probably not be allowed by MCSCC without an actual competition cage, which I am not willing to do.
If the bolt in roll bar replacement from autoform allows complete return to the stock setup, I might be able to do that if it will allow me to run timed runs. Really hoping the top can be down with that bar as I run much better with my face in the sun.
Thanks - RK