dkoloko -- By the way 35s fit on the Open Sport/MA2. My bike came with Avocet Cross inverted tread 700 x 35s, and I have run Conti touring 700 x35 also with no issue. It's a size bigger than recommended, but works fine (I did the Pacific Coast with Contis).
I specified 35mm measured. If you are successful mounting 35mm tires (actual measurement), fine. I couldn't mount 35mm Marathon tires on rims, not MA2, but same width, and yes, with hooked beads. There is also question of performance when such size tire is mounted on such size rim.