Ghestem Jump Overcalls

After opponents' open at the one-level, you make a jump overcall of
2NT = lowest ranking two suits 3C = lowest and highest ranking two suits 3D = 2 highest ranking two suits

Defense to Ghestem Jump Overcalls

   X = penalties of at least 1 of their suits
   Cue bid one of known suits to show tolerance for opener's suit & a control in the bid suit.
    (looking for NT if pard has the other one covered)
   Bid the 4th suit - forcing, support, good hand not interested in a penalty
   Simple raise of partner = limited
   Jump raise of partner  =  pre-emptive 
   Jump in one of their suits = splinter
   Jump in 4th suit = big hand,  play in 6 or 7?