fine answers  

1. yes, but , , , ,  punctuation is the worst i guess
2. i know i could do it,  but i don't want make surgeonery on the saturn arcade sticks,  or that would mean that i would later require switches to activate psx/saturn modes :/
some people claimed too when Virtua-on came on ps2 for such adaptors (twin sticks exist on saturn/dreamcast)  but i didn't read something or someone that successfully achieved this