I thought it was something like -7 , i've randomly punished EX tele with Kabal's d1 wich is 7 frames and my sparring partner has punished with a d1 into combo with JC d1 ( wich is 6 frames ) so i wonder if Sektor is at -7 when he's still in the air , basically any character with a 12 frame special mid / low / overhead gets free pressure after a blocked EX TU , if the opponent does a high move /throw there's a chance for sektor to do d2/d1/d3/d4 , any 14+ frames move can be stuffed by 12/11 , in my opinion a blocked EX TU means free pressure for the opponent ( ex: Cage will always f3 after EX TU since it's a 9 frame special mid with a good vertical hitbox in case Sektor tries to jump out too ) and since Sektor has no armor moves ( well Xray has but if you are doing an EX TU i doubt you can Xray ) he has to block against a good player.