Adamo Time Trial and Rear Hydration?

I tried searching first but perhaps I'm not using the proper terms to find what I need to know, so apologies if this has been covered a million times already.

I recently swapped out my saddle to a new Adamo Time Trial. Can't say enough good things about the seat. My problem now is the Tacx rear cage mount I was using will not clear the back of the saddle. Not a big deal on short rides of course, but on longer ones I do like having an extra bottle or two.

I know Cervelo users are able to mount directly to the seat post, but I'm not that lucky. Does anyone here run the same saddle and have you found a solution that works?

Thanks very much!

Ty