Tested the 2 Mezz's, and the result was quite expected. I cannot feel the difference, however it can be heard. The SS jointed cue sounds a tiny bit sharper when hit, but other than that it just doesnt matter what you have for collars in a Mezz. The SS jointed cue is also made of ebony, where my Juma collared Mezz is made of birdseye maple. I'll post some pics and a short video of each hit, so you can see for yourself wich one you like based on looks and the sound of the video if you can even hear the difference on video 
My advice is to go with the one that looks better in your eye, the mental benefit of liking how your cue looks is far more important than the minimal difference between joint materials.

My advice is to go with the one that looks better in your eye, the mental benefit of liking how your cue looks is far more important than the minimal difference between joint materials.