Electronic TE compensation, will this work?

I was told by one of the top Polish pilots that the ASG-29 used by Polish Team was using electronic compensation and they felt it was as good or better than using a TE probe.

That I what I have heard as well, but just don’t know if my leaking TE line acting as a static will give me any reasonably accurate electronic TE compensation

That is extremely unlikely to work as even if the TE tube is completely detached in the fin you have no idea how closely the pressure inside the fin is following true static. The reason for having co-located ports is to minimise differences in time response. Electronic TE compensation requires really accurate pitot and static inputs with simultaneous signals to work properly. If you have them there is a better chance getting it to work (even if not well) by using aft fuselage static ports, which are usually fairly accurate, than a completely unknown source inside the fin.