I feel for Cora's situation and it's terrible that there is so much stigma around all of this, if something works, why not use it, so sad to see coaches so against it that it might be a detriment to their students in competition especially. I'm now at a gym that is fine with all of it, only sad part is it's much further away from me so I'm just not getting the training in that I used to, but it's worth it not to have to deal with close minded people.
On a side note it was great to see rubberguard being used by the women in the recent Ultimate Fighter season