Evo west ps2/dc converters...?

i was told that for the actual tournament games we will have to use EVO supplied adapters/converters if we have a ps2 stick. is that correct? i have a Stanley custom stick that has a ps2 pad in it, and the converter i have maps the buttons properly with no issues, yet if i use my buddies converter, my assist B doesnt work. (this is for MvC2)

so i am wondering if this is true, and if so what type/model converters do they supply?

ok so i was able to find pics of the one i have—This one
and this is the one that my assist doesnt work on----This one

so which do we have to use for EVO play? or CAN we use our own?


This is what I was refering to, it doesnt state button mapping at all.