Scaling High ST Grapple?

[Phantasm]

My search-fu sucks, because I know this has been addressed elsewhere.

Two characters: A tank with effective ST 50, and a psi with Telekinesis 25 and Binding 25 (with Malediction and One-Shot). The psi attempts to grapple the tank with either her TK or her Binding.

Is there a way to make this effective by scaling the values proportionately so that the tank is not just shrugging off the telekinetic binding just by flexing on the first go? This is a super-hero game operating at around 1,000 points, and the Psi is sitting at 998 as-is; doubling TK and/or Binding is really not an option.

P.S. The player I'm asking this for wants to know if he can add his TK to his Binding; both have the Psychokinetic power modifier, and the 'flavor text' of Binding indicates that it's a TK-stunt. My gut is to say "no", as it's already a version of TK in use, but I was wondering what the hive-mind thought.