the move u want to always use with ken is reppa i dont care what u
think about his others moves agianst pros they dont land period unless
it was a lucky shot, ok as for reppa by far kens best move on sfo u
should never do this from a standing postion unless u think u are going
to hit ur oppoent for sure cause most likely he will super jump behind
you and blast you with a shinku or what ever.
best way to activate is a reppa is either super jump straight up and
when ur coming down make sure ur coming down no more than a char away
from the end screen then activate ur reppa i learned this from rightous
and most times its unblockable cause it starts right up close and
personal.
other best way to activate a reppa is to super jump behind ur oppoent
then bang hit ur reppa on ur oppoents screen ur reppa is going
backwards because ken is that fast the frames cant keep up so i hope
that helps with landing more supers with ken cause i know alot of