Hi gmoney37.
Welcome to our Mattress Forum! 
Hopefully bedshopper or others with high sensitivity to the motion transfer issues will see your post and return with an update of how their motion isolation experiments turned out in the long run. Unfortunately, there is no real standardization of minimization of motion transfer scale, so generally, it is difficult to offer more specific guidance other than the few ways to mitigate it that are listed in this thread and in the post linked below. It can be a bit of a controversial subject as everyone is different and motion transfer/isolation usually is a matter of perception/sensitivity and the type of movements of each partner … even the cover if it is too stretched, can have a “trampoline effect”. Consumer feedback given throughout the forum shows that for some an all latex bed feels “jello-like” whilst many others can swear that there is no motion transfer whatsoever and describe it as a cloud-like experience. There is a little more detail about motion transfer in post #18 here that you may find useful as well.
Phoenix