Novatouch'd Realforce 87u Spacebar Question

Question for anyone who has Novatouch’d a Realforce87u spacebar*

What 6u MX spacebars will work with it?? I know it must be centered stem, but this one i’m trying to use is NOT working!:

My thought process is that GMK 6u spacebars use a 95mm center-to-center stabilizer, while these Razer Blackwidows and CMStorm Quickfire Ultimates use a 98mm center-to-center stabilizer.

If that’s true, would any 6u Spacebar from a GMK set work?

If anyone can confirm, that would be great!