LCD-X very uncomfortable

Last week I got my Audeze LCD-X. Sound wise I think its great. No complaints whatsoever.

However, it is SUPER uncomfortable. So much so, that I cant really wear it for more than 20 to 30 minutes due to the pressure I feel (i.e. it hurts) on the top of my head.

I ordered an aftermarket headband which I hope will help. If not, I am afraid it will go back.

What would be a good alternative if it comes to that?