i don't get the pro-hop problem, don't control the guy that's being driven on (you'll get burned)--be the help guy(usually the center) then when he pro-hops --go help him out and block or distract the shot.--The cpu pro-hop has been the least of my concerns on superstar--I'm tweaking so that the cpu will actually shoot a higher fg%. i think i had too low though.
Are you guys playing man to man defence? If the pro-hop is killing you--switch to zone so you know there will be some help available. The problem might not be the game but how your playing defense.
I never man up unless it's a close game and the cpu needs a three or something to win, I always play as help "d". try it out, see if that helps.