As to the question of 30 straight, yes several , at various venues .....only one when a slide was being experimented with.
Guns, more varied than the Flyer ring.... Perazzi, Krieghoff, Beretta 10 and 11, various 680 series, Blaser all present in varying numbers....I think the winners circle has more P and K guns these days.....
30 straight is most certainly an accomplishment.
At our club there has only been 2 thirty straights shot with the slide in 8 years, both in the last year.
One of the great things about attending a Helice tournament (or flyers) is getting to see the guns in the rack.