I have and it makes a huge difference in carry a heavy climber on long walks. I have a summit climber. I think the model is a Titan, but not 100% sure. It's a bigger model summit. I'm 6'2". I use an old hiking pack frame that I removed the pack from. I tie it on with 3 small ropes, 2 at the top, and one around the bottom. I can have it all put together in just a few minutes.
I put my pack on the other side in the climber and run a bungee cord across it.
There are a couple of disadvantages. The biggest being noise. At times it might squeek or clank. The 2 orange gear ties you see in the pic are to keep the upper and lower sections of the climber from clanking together and helps with the squeeking. I find the tighter I can get it tied together, the less likely it is to make any noise. You'll also notice the pipe insulation across the top to keep the metal from the climber from clanking on the metal of the frame.
Secondly, I have to remove the frame in order to climb. So I have to detach and attach it each hunt. The perfect scenario would be something you could leave attached to the bottom section and not have to take it apart every time.
Here's a pic of my setup.